Home / 3,177.95-4,769.15-2,139.93

Finding the Fourth Proportional to 3,177.95, 4,769.15 and 2,139.93

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Solution

The fourth proportional to 3,177.95, 4,769.15 and 2,139.93 is: 3,211.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.95 : 4,769.15 = 2,139.93 : x
  2. Step 2: Convert to fraction form
    3,177.95/4,769.15 = 2,139.93/x
  3. Step 3: Cross multiply
    3,177.95x = 4,769.15 × 2,139.93
  4. Step 4: Simplify right side
    3,177.95x = 10,205,636.46
  5. Step 5: Solve for x
    x = 10,205,636.46/3,177.95
  6. Step 6: Final answer
    x = 3,211.39

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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.