Home / 5,079.30-7,618.94-2,155.56

Finding the Fourth Proportional to 5,079.30, 7,618.94 and 2,155.56

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Solution

The fourth proportional to 5,079.30, 7,618.94 and 2,155.56 is: 3,233.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.30 : 7,618.94 = 2,155.56 : x
  2. Step 2: Convert to fraction form
    5,079.30/7,618.94 = 2,155.56/x
  3. Step 3: Cross multiply
    5,079.30x = 7,618.94 × 2,155.56
  4. Step 4: Simplify right side
    5,079.30x = 16,423,071.53
  5. Step 5: Solve for x
    x = 16,423,071.53/5,079.30
  6. Step 6: Final answer
    x = 3,233.33

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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.