Home / 1,411.31-2,117.19-437.41

Finding the Fourth Proportional to 1,411.31, 2,117.19 and 437.41

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Solution

The fourth proportional to 1,411.31, 2,117.19 and 437.41 is: 656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.31 : 2,117.19 = 437.41 : x
  2. Step 2: Convert to fraction form
    1,411.31/2,117.19 = 437.41/x
  3. Step 3: Cross multiply
    1,411.31x = 2,117.19 × 437.41
  4. Step 4: Simplify right side
    1,411.31x = 926,080.08
  5. Step 5: Solve for x
    x = 926,080.08/1,411.31
  6. Step 6: Final answer
    x = 656.18

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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.