Home / 4,149.40-6,226.52-2,978.16

Finding the Fourth Proportional to 4,149.40, 6,226.52 and 2,978.16

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Solution

The fourth proportional to 4,149.40, 6,226.52 and 2,978.16 is: 4,468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,149.40 : 6,226.52 = 2,978.16 : x
  2. Step 2: Convert to fraction form
    4,149.40/6,226.52 = 2,978.16/x
  3. Step 3: Cross multiply
    4,149.40x = 6,226.52 × 2,978.16
  4. Step 4: Simplify right side
    4,149.40x = 18,543,572.80
  5. Step 5: Solve for x
    x = 18,543,572.80/4,149.40
  6. Step 6: Final answer
    x = 4,468.98

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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.