Home / 5,176.77-7,144.02-2,818.95

Finding the Fourth Proportional to 5,176.77, 7,144.02 and 2,818.95

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Solution

The fourth proportional to 5,176.77, 7,144.02 and 2,818.95 is: 3,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.77 : 7,144.02 = 2,818.95 : x
  2. Step 2: Convert to fraction form
    5,176.77/7,144.02 = 2,818.95/x
  3. Step 3: Cross multiply
    5,176.77x = 7,144.02 × 2,818.95
  4. Step 4: Simplify right side
    5,176.77x = 20,138,635.18
  5. Step 5: Solve for x
    x = 20,138,635.18/5,176.77
  6. Step 6: Final answer
    x = 3,890.19

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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.