Home / 1,232.30-1,851.38-1,031.31

Finding the Fourth Proportional to 1,232.30, 1,851.38 and 1,031.31

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Solution

The fourth proportional to 1,232.30, 1,851.38 and 1,031.31 is: 1,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.30 : 1,851.38 = 1,031.31 : x
  2. Step 2: Convert to fraction form
    1,232.30/1,851.38 = 1,031.31/x
  3. Step 3: Cross multiply
    1,232.30x = 1,851.38 × 1,031.31
  4. Step 4: Simplify right side
    1,232.30x = 1,909,341.55
  5. Step 5: Solve for x
    x = 1,909,341.55/1,232.30
  6. Step 6: Final answer
    x = 1,549.42

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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.