Home / 5,535.68-7,639.56-3,177.80

Finding the Fourth Proportional to 5,535.68, 7,639.56 and 3,177.80

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Solution

The fourth proportional to 5,535.68, 7,639.56 and 3,177.80 is: 4,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.68 : 7,639.56 = 3,177.80 : x
  2. Step 2: Convert to fraction form
    5,535.68/7,639.56 = 3,177.80/x
  3. Step 3: Cross multiply
    5,535.68x = 7,639.56 × 3,177.80
  4. Step 4: Simplify right side
    5,535.68x = 24,276,993.77
  5. Step 5: Solve for x
    x = 24,276,993.77/5,535.68
  6. Step 6: Final answer
    x = 4,385.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.