Home / 2,029.15-3,042.89-988.86

Finding the Fourth Proportional to 2,029.15, 3,042.89 and 988.86

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Solution

The fourth proportional to 2,029.15, 3,042.89 and 988.86 is: 1,482.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.15 : 3,042.89 = 988.86 : x
  2. Step 2: Convert to fraction form
    2,029.15/3,042.89 = 988.86/x
  3. Step 3: Cross multiply
    2,029.15x = 3,042.89 × 988.86
  4. Step 4: Simplify right side
    2,029.15x = 3,008,988.05
  5. Step 5: Solve for x
    x = 3,008,988.05/2,029.15
  6. Step 6: Final answer
    x = 1,482.88

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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.