Home / 6,488.10-9,731.52-2,789.64

Finding the Fourth Proportional to 6,488.10, 9,731.52 and 2,789.64

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Solution

The fourth proportional to 6,488.10, 9,731.52 and 2,789.64 is: 4,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488.10 : 9,731.52 = 2,789.64 : x
  2. Step 2: Convert to fraction form
    6,488.10/9,731.52 = 2,789.64/x
  3. Step 3: Cross multiply
    6,488.10x = 9,731.52 × 2,789.64
  4. Step 4: Simplify right side
    6,488.10x = 27,147,437.45
  5. Step 5: Solve for x
    x = 27,147,437.45/6,488.10
  6. Step 6: Final answer
    x = 4,184.19

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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.