Home / 4,478.98-6,719.20-1,558.12

Finding the Fourth Proportional to 4,478.98, 6,719.20 and 1,558.12

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Solution

The fourth proportional to 4,478.98, 6,719.20 and 1,558.12 is: 2,337.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.98 : 6,719.20 = 1,558.12 : x
  2. Step 2: Convert to fraction form
    4,478.98/6,719.20 = 1,558.12/x
  3. Step 3: Cross multiply
    4,478.98x = 6,719.20 × 1,558.12
  4. Step 4: Simplify right side
    4,478.98x = 10,469,319.90
  5. Step 5: Solve for x
    x = 10,469,319.90/4,478.98
  6. Step 6: Final answer
    x = 2,337.43

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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.