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Finding the Fourth Proportional to 6,397.53, 8,828.46 and 4,380.89

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Solution

The fourth proportional to 6,397.53, 8,828.46 and 4,380.89 is: 6,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,397.53 : 8,828.46 = 4,380.89 : x
  2. Step 2: Convert to fraction form
    6,397.53/8,828.46 = 4,380.89/x
  3. Step 3: Cross multiply
    6,397.53x = 8,828.46 × 4,380.89
  4. Step 4: Simplify right side
    6,397.53x = 38,676,449.51
  5. Step 5: Solve for x
    x = 38,676,449.51/6,397.53
  6. Step 6: Final answer
    x = 6,045.53

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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.