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Finding the Fourth Proportional to 1,130.30, 1,559.82 and 632.97

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Solution

The fourth proportional to 1,130.30, 1,559.82 and 632.97 is: 873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.30 : 1,559.82 = 632.97 : x
  2. Step 2: Convert to fraction form
    1,130.30/1,559.82 = 632.97/x
  3. Step 3: Cross multiply
    1,130.30x = 1,559.82 × 632.97
  4. Step 4: Simplify right side
    1,130.30x = 987,319.27
  5. Step 5: Solve for x
    x = 987,319.27/1,130.30
  6. Step 6: Final answer
    x = 873.50

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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.