Home / 3,405.57-4,700.17-2,147.19

Finding the Fourth Proportional to 3,405.57, 4,700.17 and 2,147.19

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Solution

The fourth proportional to 3,405.57, 4,700.17 and 2,147.19 is: 2,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.57 : 4,700.17 = 2,147.19 : x
  2. Step 2: Convert to fraction form
    3,405.57/4,700.17 = 2,147.19/x
  3. Step 3: Cross multiply
    3,405.57x = 4,700.17 × 2,147.19
  4. Step 4: Simplify right side
    3,405.57x = 10,092,158.09
  5. Step 5: Solve for x
    x = 10,092,158.09/3,405.57
  6. Step 6: Final answer
    x = 2,963.43

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Half scale
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Double scale
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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.