Home / 5,122.04-7,685.28-2,658.62

Finding the Fourth Proportional to 5,122.04, 7,685.28 and 2,658.62

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Solution

The fourth proportional to 5,122.04, 7,685.28 and 2,658.62 is: 3,989.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.04 : 7,685.28 = 2,658.62 : x
  2. Step 2: Convert to fraction form
    5,122.04/7,685.28 = 2,658.62/x
  3. Step 3: Cross multiply
    5,122.04x = 7,685.28 × 2,658.62
  4. Step 4: Simplify right side
    5,122.04x = 20,432,258.33
  5. Step 5: Solve for x
    x = 20,432,258.33/5,122.04
  6. Step 6: Final answer
    x = 3,989.09

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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.