Home / 5,123.85-7,070.76-3,133.95

Finding the Fourth Proportional to 5,123.85, 7,070.76 and 3,133.95

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Solution

The fourth proportional to 5,123.85, 7,070.76 and 3,133.95 is: 4,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.85 : 7,070.76 = 3,133.95 : x
  2. Step 2: Convert to fraction form
    5,123.85/7,070.76 = 3,133.95/x
  3. Step 3: Cross multiply
    5,123.85x = 7,070.76 × 3,133.95
  4. Step 4: Simplify right side
    5,123.85x = 22,159,408.30
  5. Step 5: Solve for x
    x = 22,159,408.30/5,123.85
  6. Step 6: Final answer
    x = 4,324.76

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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.