Home / 1,817.28-2,507.76-1,031.31

Finding the Fourth Proportional to 1,817.28, 2,507.76 and 1,031.31

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Solution

The fourth proportional to 1,817.28, 2,507.76 and 1,031.31 is: 1,423.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.28 : 2,507.76 = 1,031.31 : x
  2. Step 2: Convert to fraction form
    1,817.28/2,507.76 = 1,031.31/x
  3. Step 3: Cross multiply
    1,817.28x = 2,507.76 × 1,031.31
  4. Step 4: Simplify right side
    1,817.28x = 2,586,277.97
  5. Step 5: Solve for x
    x = 2,586,277.97/1,817.28
  6. Step 6: Final answer
    x = 1,423.16

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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.