Home / 4,040.64-6,060.80-1,118.88

Finding the Fourth Proportional to 4,040.64, 6,060.80 and 1,118.88

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Solution

The fourth proportional to 4,040.64, 6,060.80 and 1,118.88 is: 1,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,040.64 : 6,060.80 = 1,118.88 : x
  2. Step 2: Convert to fraction form
    4,040.64/6,060.80 = 1,118.88/x
  3. Step 3: Cross multiply
    4,040.64x = 6,060.80 × 1,118.88
  4. Step 4: Simplify right side
    4,040.64x = 6,781,307.90
  5. Step 5: Solve for x
    x = 6,781,307.90/4,040.64
  6. Step 6: Final answer
    x = 1,678.28

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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.