Home / 4,488.31-6,729.34-1,988.13

Finding the Fourth Proportional to 4,488.31, 6,729.34 and 1,988.13

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Solution

The fourth proportional to 4,488.31, 6,729.34 and 1,988.13 is: 2,980.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,488.31 : 6,729.34 = 1,988.13 : x
  2. Step 2: Convert to fraction form
    4,488.31/6,729.34 = 1,988.13/x
  3. Step 3: Cross multiply
    4,488.31x = 6,729.34 × 1,988.13
  4. Step 4: Simplify right side
    4,488.31x = 13,378,825.58
  5. Step 5: Solve for x
    x = 13,378,825.58/4,488.31
  6. Step 6: Final answer
    x = 2,980.82

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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.