Home / 6,638.90-9,160.29-3,807.18

Finding the Fourth Proportional to 6,638.90, 9,160.29 and 3,807.18

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Solution

The fourth proportional to 6,638.90, 9,160.29 and 3,807.18 is: 5,253.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.90 : 9,160.29 = 3,807.18 : x
  2. Step 2: Convert to fraction form
    6,638.90/9,160.29 = 3,807.18/x
  3. Step 3: Cross multiply
    6,638.90x = 9,160.29 × 3,807.18
  4. Step 4: Simplify right side
    6,638.90x = 34,874,872.88
  5. Step 5: Solve for x
    x = 34,874,872.88/6,638.90
  6. Step 6: Final answer
    x = 5,253.11

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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.