Home / 1,101.04-1,519.48-658.86

Finding the Fourth Proportional to 1,101.04, 1,519.48 and 658.86

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Solution

The fourth proportional to 1,101.04, 1,519.48 and 658.86 is: 909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101.04 : 1,519.48 = 658.86 : x
  2. Step 2: Convert to fraction form
    1,101.04/1,519.48 = 658.86/x
  3. Step 3: Cross multiply
    1,101.04x = 1,519.48 × 658.86
  4. Step 4: Simplify right side
    1,101.04x = 1,001,117.00
  5. Step 5: Solve for x
    x = 1,001,117.00/1,101.04
  6. Step 6: Final answer
    x = 909.25

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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.