Home / 1,169.52-1,756.20-1,117.56

Finding the Fourth Proportional to 1,169.52, 1,756.20 and 1,117.56

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Solution

The fourth proportional to 1,169.52, 1,756.20 and 1,117.56 is: 1,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.52 : 1,756.20 = 1,117.56 : x
  2. Step 2: Convert to fraction form
    1,169.52/1,756.20 = 1,117.56/x
  3. Step 3: Cross multiply
    1,169.52x = 1,756.20 × 1,117.56
  4. Step 4: Simplify right side
    1,169.52x = 1,962,658.87
  5. Step 5: Solve for x
    x = 1,962,658.87/1,169.52
  6. Step 6: Final answer
    x = 1,678.17

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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.