Home / 6,656.38-9,986.52-1,976.40

Finding the Fourth Proportional to 6,656.38, 9,986.52 and 1,976.40

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Solution

The fourth proportional to 6,656.38, 9,986.52 and 1,976.40 is: 2,965.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.38 : 9,986.52 = 1,976.40 : x
  2. Step 2: Convert to fraction form
    6,656.38/9,986.52 = 1,976.40/x
  3. Step 3: Cross multiply
    6,656.38x = 9,986.52 × 1,976.40
  4. Step 4: Simplify right side
    6,656.38x = 19,737,358.13
  5. Step 5: Solve for x
    x = 19,737,358.13/6,656.38
  6. Step 6: Final answer
    x = 2,965.18

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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.