Home / 4,299.30-6,449.10-1,377.78

Finding the Fourth Proportional to 4,299.30, 6,449.10 and 1,377.78

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Solution

The fourth proportional to 4,299.30, 6,449.10 and 1,377.78 is: 2,066.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,299.30 : 6,449.10 = 1,377.78 : x
  2. Step 2: Convert to fraction form
    4,299.30/6,449.10 = 1,377.78/x
  3. Step 3: Cross multiply
    4,299.30x = 6,449.10 × 1,377.78
  4. Step 4: Simplify right side
    4,299.30x = 8,885,441.00
  5. Step 5: Solve for x
    x = 8,885,441.00/4,299.30
  6. Step 6: Final answer
    x = 2,066.72

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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.