Home / 6,747.88-9,309.18-3,915.04

Finding the Fourth Proportional to 6,747.88, 9,309.18 and 3,915.04

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Solution

The fourth proportional to 6,747.88, 9,309.18 and 3,915.04 is: 5,401.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,747.88 : 9,309.18 = 3,915.04 : x
  2. Step 2: Convert to fraction form
    6,747.88/9,309.18 = 3,915.04/x
  3. Step 3: Cross multiply
    6,747.88x = 9,309.18 × 3,915.04
  4. Step 4: Simplify right side
    6,747.88x = 36,445,812.07
  5. Step 5: Solve for x
    x = 36,445,812.07/6,747.88
  6. Step 6: Final answer
    x = 5,401.08

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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.