Home / 3,142.07-4,335.98-1,816.19

Finding the Fourth Proportional to 3,142.07, 4,335.98 and 1,816.19

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Solution

The fourth proportional to 3,142.07, 4,335.98 and 1,816.19 is: 2,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.07 : 4,335.98 = 1,816.19 : x
  2. Step 2: Convert to fraction form
    3,142.07/4,335.98 = 1,816.19/x
  3. Step 3: Cross multiply
    3,142.07x = 4,335.98 × 1,816.19
  4. Step 4: Simplify right side
    3,142.07x = 7,874,963.52
  5. Step 5: Solve for x
    x = 7,874,963.52/3,142.07
  6. Step 6: Final answer
    x = 2,506.30

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.