Home / 1,431.49-2,147.24-506.83

Finding the Fourth Proportional to 1,431.49, 2,147.24 and 506.83

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Solution

The fourth proportional to 1,431.49, 2,147.24 and 506.83 is: 760.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431.49 : 2,147.24 = 506.83 : x
  2. Step 2: Convert to fraction form
    1,431.49/2,147.24 = 506.83/x
  3. Step 3: Cross multiply
    1,431.49x = 2,147.24 × 506.83
  4. Step 4: Simplify right side
    1,431.49x = 1,088,278.70
  5. Step 5: Solve for x
    x = 1,088,278.70/1,431.49
  6. Step 6: Final answer
    x = 760.24

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Double scale
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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.