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Finding the Fourth Proportional to 5,508.75, 7,601.95 and 2,990.76

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Solution

The fourth proportional to 5,508.75, 7,601.95 and 2,990.76 is: 4,127.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,508.75 : 7,601.95 = 2,990.76 : x
  2. Step 2: Convert to fraction form
    5,508.75/7,601.95 = 2,990.76/x
  3. Step 3: Cross multiply
    5,508.75x = 7,601.95 × 2,990.76
  4. Step 4: Simplify right side
    5,508.75x = 22,735,607.98
  5. Step 5: Solve for x
    x = 22,735,607.98/5,508.75
  6. Step 6: Final answer
    x = 4,127.18

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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.