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Finding the Fourth Proportional to 6,648.21, 9,972.31 and 4,561.89

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Solution

The fourth proportional to 6,648.21, 9,972.31 and 4,561.89 is: 6,842.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.21 : 9,972.31 = 4,561.89 : x
  2. Step 2: Convert to fraction form
    6,648.21/9,972.31 = 4,561.89/x
  3. Step 3: Cross multiply
    6,648.21x = 9,972.31 × 4,561.89
  4. Step 4: Simplify right side
    6,648.21x = 45,492,531.40
  5. Step 5: Solve for x
    x = 45,492,531.40/6,648.21
  6. Step 6: Final answer
    x = 6,842.83

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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.