Home / 5,535.18-7,638.87-3,177.30

Finding the Fourth Proportional to 5,535.18, 7,638.87 and 3,177.30

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Solution

The fourth proportional to 5,535.18, 7,638.87 and 3,177.30 is: 4,384.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.18 : 7,638.87 = 3,177.30 : x
  2. Step 2: Convert to fraction form
    5,535.18/7,638.87 = 3,177.30/x
  3. Step 3: Cross multiply
    5,535.18x = 7,638.87 × 3,177.30
  4. Step 4: Simplify right side
    5,535.18x = 24,270,981.65
  5. Step 5: Solve for x
    x = 24,270,981.65/5,535.18
  6. Step 6: Final answer
    x = 4,384.86

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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.