Home / 1,177.79-1,766.88-528.57

Finding the Fourth Proportional to 1,177.79, 1,766.88 and 528.57

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Solution

The fourth proportional to 1,177.79, 1,766.88 and 528.57 is: 792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.79 : 1,766.88 = 528.57 : x
  2. Step 2: Convert to fraction form
    1,177.79/1,766.88 = 528.57/x
  3. Step 3: Cross multiply
    1,177.79x = 1,766.88 × 528.57
  4. Step 4: Simplify right side
    1,177.79x = 933,919.76
  5. Step 5: Solve for x
    x = 933,919.76/1,177.79
  6. Step 6: Final answer
    x = 792.95

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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.