Home / 1,177.43-1,766.39-355.78

Finding the Fourth Proportional to 1,177.43, 1,766.39 and 355.78

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Solution

The fourth proportional to 1,177.43, 1,766.39 and 355.78 is: 533.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.43 : 1,766.39 = 355.78 : x
  2. Step 2: Convert to fraction form
    1,177.43/1,766.39 = 355.78/x
  3. Step 3: Cross multiply
    1,177.43x = 1,766.39 × 355.78
  4. Step 4: Simplify right side
    1,177.43x = 628,446.23
  5. Step 5: Solve for x
    x = 628,446.23/1,177.43
  6. Step 6: Final answer
    x = 533.74

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1.5x scale

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.