Home / 3,330.47-4,990.50-2,981.90

Finding the Fourth Proportional to 3,330.47, 4,990.50 and 2,981.90

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Solution

The fourth proportional to 3,330.47, 4,990.50 and 2,981.90 is: 4,468.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,330.47 : 4,990.50 = 2,981.90 : x
  2. Step 2: Convert to fraction form
    3,330.47/4,990.50 = 2,981.90/x
  3. Step 3: Cross multiply
    3,330.47x = 4,990.50 × 2,981.90
  4. Step 4: Simplify right side
    3,330.47x = 14,881,147.00
  5. Step 5: Solve for x
    x = 14,881,147.00/3,330.47
  6. Step 6: Final answer
    x = 4,468.19

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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.