Home / 1,176.16-1,764.74-517.70

Finding the Fourth Proportional to 1,176.16, 1,764.74 and 517.70

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Solution

The fourth proportional to 1,176.16, 1,764.74 and 517.70 is: 776.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.16 : 1,764.74 = 517.70 : x
  2. Step 2: Convert to fraction form
    1,176.16/1,764.74 = 517.70/x
  3. Step 3: Cross multiply
    1,176.16x = 1,764.74 × 517.70
  4. Step 4: Simplify right side
    1,176.16x = 913,605.90
  5. Step 5: Solve for x
    x = 913,605.90/1,176.16
  6. Step 6: Final answer
    x = 776.77

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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.