Home / 4,127.40-6,191.78-2,280.31

Finding the Fourth Proportional to 4,127.40, 6,191.78 and 2,280.31

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Solution

The fourth proportional to 4,127.40, 6,191.78 and 2,280.31 is: 3,420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.40 : 6,191.78 = 2,280.31 : x
  2. Step 2: Convert to fraction form
    4,127.40/6,191.78 = 2,280.31/x
  3. Step 3: Cross multiply
    4,127.40x = 6,191.78 × 2,280.31
  4. Step 4: Simplify right side
    4,127.40x = 14,119,150.97
  5. Step 5: Solve for x
    x = 14,119,150.97/4,127.40
  6. Step 6: Final answer
    x = 3,420.83

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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.