Home / 3,642.80-5,465.55-1,177.70

Finding the Fourth Proportional to 3,642.80, 5,465.55 and 1,177.70

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Solution

The fourth proportional to 3,642.80, 5,465.55 and 1,177.70 is: 1,766.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.80 : 5,465.55 = 1,177.70 : x
  2. Step 2: Convert to fraction form
    3,642.80/5,465.55 = 1,177.70/x
  3. Step 3: Cross multiply
    3,642.80x = 5,465.55 × 1,177.70
  4. Step 4: Simplify right side
    3,642.80x = 6,436,778.24
  5. Step 5: Solve for x
    x = 6,436,778.24/3,642.80
  6. Step 6: Final answer
    x = 1,766.99

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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.