Home / 4,147.07-6,220.98-1,955.21

Finding the Fourth Proportional to 4,147.07, 6,220.98 and 1,955.21

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Solution

The fourth proportional to 4,147.07, 6,220.98 and 1,955.21 is: 2,932.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.07 : 6,220.98 = 1,955.21 : x
  2. Step 2: Convert to fraction form
    4,147.07/6,220.98 = 1,955.21/x
  3. Step 3: Cross multiply
    4,147.07x = 6,220.98 × 1,955.21
  4. Step 4: Simplify right side
    4,147.07x = 12,163,291.20
  5. Step 5: Solve for x
    x = 12,163,291.20/4,147.07
  6. Step 6: Final answer
    x = 2,932.99

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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.