Home / 1,127.24-1,691.01-347.30

Finding the Fourth Proportional to 1,127.24, 1,691.01 and 347.30

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Solution

The fourth proportional to 1,127.24, 1,691.01 and 347.30 is: 521.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127.24 : 1,691.01 = 347.30 : x
  2. Step 2: Convert to fraction form
    1,127.24/1,691.01 = 347.30/x
  3. Step 3: Cross multiply
    1,127.24x = 1,691.01 × 347.30
  4. Step 4: Simplify right side
    1,127.24x = 587,287.77
  5. Step 5: Solve for x
    x = 587,287.77/1,127.24
  6. Step 6: Final answer
    x = 521.00

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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.