Home / 6,618.28-9,132.58-3,823.72

Finding the Fourth Proportional to 6,618.28, 9,132.58 and 3,823.72

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Solution

The fourth proportional to 6,618.28, 9,132.58 and 3,823.72 is: 5,276.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.28 : 9,132.58 = 3,823.72 : x
  2. Step 2: Convert to fraction form
    6,618.28/9,132.58 = 3,823.72/x
  3. Step 3: Cross multiply
    6,618.28x = 9,132.58 × 3,823.72
  4. Step 4: Simplify right side
    6,618.28x = 34,920,428.80
  5. Step 5: Solve for x
    x = 34,920,428.80/6,618.28
  6. Step 6: Final answer
    x = 5,276.36

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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.