Home / 5,490.60-7,576.95-2,972.65

Finding the Fourth Proportional to 5,490.60, 7,576.95 and 2,972.65

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Solution

The fourth proportional to 5,490.60, 7,576.95 and 2,972.65 is: 4,102.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.60 : 7,576.95 = 2,972.65 : x
  2. Step 2: Convert to fraction form
    5,490.60/7,576.95 = 2,972.65/x
  3. Step 3: Cross multiply
    5,490.60x = 7,576.95 × 2,972.65
  4. Step 4: Simplify right side
    5,490.60x = 22,523,620.42
  5. Step 5: Solve for x
    x = 22,523,620.42/5,490.60
  6. Step 6: Final answer
    x = 4,102.21

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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.