Home / 5,535.20-7,638.29-3,177.20

Finding the Fourth Proportional to 5,535.20, 7,638.29 and 3,177.20

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Solution

The fourth proportional to 5,535.20, 7,638.29 and 3,177.20 is: 4,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.20 : 7,638.29 = 3,177.20 : x
  2. Step 2: Convert to fraction form
    5,535.20/7,638.29 = 3,177.20/x
  3. Step 3: Cross multiply
    5,535.20x = 7,638.29 × 3,177.20
  4. Step 4: Simplify right side
    5,535.20x = 24,268,320.91
  5. Step 5: Solve for x
    x = 24,268,320.91/5,535.20
  6. Step 6: Final answer
    x = 4,384.37

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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.