Home / 1,474.29-2,034.51-811.13

Finding the Fourth Proportional to 1,474.29, 2,034.51 and 811.13

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Solution

The fourth proportional to 1,474.29, 2,034.51 and 811.13 is: 1,119.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.29 : 2,034.51 = 811.13 : x
  2. Step 2: Convert to fraction form
    1,474.29/2,034.51 = 811.13/x
  3. Step 3: Cross multiply
    1,474.29x = 2,034.51 × 811.13
  4. Step 4: Simplify right side
    1,474.29x = 1,650,252.10
  5. Step 5: Solve for x
    x = 1,650,252.10/1,474.29
  6. Step 6: Final answer
    x = 1,119.35

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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.