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Finding the Fourth Proportional to 4,866.40, 7,296.32 and 1,943.20

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Solution

The fourth proportional to 4,866.40, 7,296.32 and 1,943.20 is: 2,913.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866.40 : 7,296.32 = 1,943.20 : x
  2. Step 2: Convert to fraction form
    4,866.40/7,296.32 = 1,943.20/x
  3. Step 3: Cross multiply
    4,866.40x = 7,296.32 × 1,943.20
  4. Step 4: Simplify right side
    4,866.40x = 14,178,209.02
  5. Step 5: Solve for x
    x = 14,178,209.02/4,866.40
  6. Step 6: Final answer
    x = 2,913.49

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.