Home / 6,657.80-9,984.98-1,976.70

Finding the Fourth Proportional to 6,657.80, 9,984.98 and 1,976.70

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Solution

The fourth proportional to 6,657.80, 9,984.98 and 1,976.70 is: 2,964.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657.80 : 9,984.98 = 1,976.70 : x
  2. Step 2: Convert to fraction form
    6,657.80/9,984.98 = 1,976.70/x
  3. Step 3: Cross multiply
    6,657.80x = 9,984.98 × 1,976.70
  4. Step 4: Simplify right side
    6,657.80x = 19,737,309.97
  5. Step 5: Solve for x
    x = 19,737,309.97/6,657.80
  6. Step 6: Final answer
    x = 2,964.54

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Double scale
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Similar ratio
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1.5x scale

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.