Home / 2,030.17-3,042.80-988.61

Finding the Fourth Proportional to 2,030.17, 3,042.80 and 988.61

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Solution

The fourth proportional to 2,030.17, 3,042.80 and 988.61 is: 1,481.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.17 : 3,042.80 = 988.61 : x
  2. Step 2: Convert to fraction form
    2,030.17/3,042.80 = 988.61/x
  3. Step 3: Cross multiply
    2,030.17x = 3,042.80 × 988.61
  4. Step 4: Simplify right side
    2,030.17x = 3,008,137.47
  5. Step 5: Solve for x
    x = 3,008,137.47/2,030.17
  6. Step 6: Final answer
    x = 1,481.72

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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.