Home / 4,478.46-6,182.86-2,991.30

Finding the Fourth Proportional to 4,478.46, 6,182.86 and 2,991.30

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Solution

The fourth proportional to 4,478.46, 6,182.86 and 2,991.30 is: 4,129.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.46 : 6,182.86 = 2,991.30 : x
  2. Step 2: Convert to fraction form
    4,478.46/6,182.86 = 2,991.30/x
  3. Step 3: Cross multiply
    4,478.46x = 6,182.86 × 2,991.30
  4. Step 4: Simplify right side
    4,478.46x = 18,494,789.12
  5. Step 5: Solve for x
    x = 18,494,789.12/4,478.46
  6. Step 6: Final answer
    x = 4,129.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.