Home / 1,407.11-2,110.99-433.24

Finding the Fourth Proportional to 1,407.11, 2,110.99 and 433.24

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Solution

The fourth proportional to 1,407.11, 2,110.99 and 433.24 is: 649.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.11 : 2,110.99 = 433.24 : x
  2. Step 2: Convert to fraction form
    1,407.11/2,110.99 = 433.24/x
  3. Step 3: Cross multiply
    1,407.11x = 2,110.99 × 433.24
  4. Step 4: Simplify right side
    1,407.11x = 914,565.31
  5. Step 5: Solve for x
    x = 914,565.31/1,407.11
  6. Step 6: Final answer
    x = 649.96

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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.