Home / 5,077.42-7,617.65-2,155.95

Finding the Fourth Proportional to 5,077.42, 7,617.65 and 2,155.95

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Solution

The fourth proportional to 5,077.42, 7,617.65 and 2,155.95 is: 3,234.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.42 : 7,617.65 = 2,155.95 : x
  2. Step 2: Convert to fraction form
    5,077.42/7,617.65 = 2,155.95/x
  3. Step 3: Cross multiply
    5,077.42x = 7,617.65 × 2,155.95
  4. Step 4: Simplify right side
    5,077.42x = 16,423,272.52
  5. Step 5: Solve for x
    x = 16,423,272.52/5,077.42
  6. Step 6: Final answer
    x = 3,234.57

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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.