Home / 6,531.84-9,009.48-4,172.92

Finding the Fourth Proportional to 6,531.84, 9,009.48 and 4,172.92

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Solution

The fourth proportional to 6,531.84, 9,009.48 and 4,172.92 is: 5,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.84 : 9,009.48 = 4,172.92 : x
  2. Step 2: Convert to fraction form
    6,531.84/9,009.48 = 4,172.92/x
  3. Step 3: Cross multiply
    6,531.84x = 9,009.48 × 4,172.92
  4. Step 4: Simplify right side
    6,531.84x = 37,595,839.28
  5. Step 5: Solve for x
    x = 37,595,839.28/6,531.84
  6. Step 6: Final answer
    x = 5,755.78

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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.