Home / 5,127.87-7,688.09-4,141.90

Finding the Fourth Proportional to 5,127.87, 7,688.09 and 4,141.90

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Solution

The fourth proportional to 5,127.87, 7,688.09 and 4,141.90 is: 6,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.87 : 7,688.09 = 4,141.90 : x
  2. Step 2: Convert to fraction form
    5,127.87/7,688.09 = 4,141.90/x
  3. Step 3: Cross multiply
    5,127.87x = 7,688.09 × 4,141.90
  4. Step 4: Simplify right side
    5,127.87x = 31,843,291.11
  5. Step 5: Solve for x
    x = 31,843,291.11/5,127.87
  6. Step 6: Final answer
    x = 6,209.85

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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.