Home / 1,411.48-2,116.50-437.56

Finding the Fourth Proportional to 1,411.48, 2,116.50 and 437.56

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Solution

The fourth proportional to 1,411.48, 2,116.50 and 437.56 is: 656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.48 : 2,116.50 = 437.56 : x
  2. Step 2: Convert to fraction form
    1,411.48/2,116.50 = 437.56/x
  3. Step 3: Cross multiply
    1,411.48x = 2,116.50 × 437.56
  4. Step 4: Simplify right side
    1,411.48x = 926,095.74
  5. Step 5: Solve for x
    x = 926,095.74/1,411.48
  6. Step 6: Final answer
    x = 656.12

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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.