Home / 1,474.40-2,034.70-811.27

Finding the Fourth Proportional to 1,474.40, 2,034.70 and 811.27

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Solution

The fourth proportional to 1,474.40, 2,034.70 and 811.27 is: 1,119.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.40 : 2,034.70 = 811.27 : x
  2. Step 2: Convert to fraction form
    1,474.40/2,034.70 = 811.27/x
  3. Step 3: Cross multiply
    1,474.40x = 2,034.70 × 811.27
  4. Step 4: Simplify right side
    1,474.40x = 1,650,681.91
  5. Step 5: Solve for x
    x = 1,650,681.91/1,474.40
  6. Step 6: Final answer
    x = 1,119.56

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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.