Home / 4,931.18-7,398.10-2,158.10

Finding the Fourth Proportional to 4,931.18, 7,398.10 and 2,158.10

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Solution

The fourth proportional to 4,931.18, 7,398.10 and 2,158.10 is: 3,237.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.18 : 7,398.10 = 2,158.10 : x
  2. Step 2: Convert to fraction form
    4,931.18/7,398.10 = 2,158.10/x
  3. Step 3: Cross multiply
    4,931.18x = 7,398.10 × 2,158.10
  4. Step 4: Simplify right side
    4,931.18x = 15,965,839.61
  5. Step 5: Solve for x
    x = 15,965,839.61/4,931.18
  6. Step 6: Final answer
    x = 3,237.73

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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.