Home / 6,127.50-9,191.81-2,178.38

Finding the Fourth Proportional to 6,127.50, 9,191.81 and 2,178.38

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Solution

The fourth proportional to 6,127.50, 9,191.81 and 2,178.38 is: 3,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,127.50 : 9,191.81 = 2,178.38 : x
  2. Step 2: Convert to fraction form
    6,127.50/9,191.81 = 2,178.38/x
  3. Step 3: Cross multiply
    6,127.50x = 9,191.81 × 2,178.38
  4. Step 4: Simplify right side
    6,127.50x = 20,023,283.49
  5. Step 5: Solve for x
    x = 20,023,283.49/6,127.50
  6. Step 6: Final answer
    x = 3,267.77

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1.5x scale

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.