Home / 6,869.76-10,304.85-1,938.89

Finding the Fourth Proportional to 6,869.76, 10,304.85 and 1,938.89

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Solution

The fourth proportional to 6,869.76, 10,304.85 and 1,938.89 is: 2,908.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.76 : 10,304.85 = 1,938.89 : x
  2. Step 2: Convert to fraction form
    6,869.76/10,304.85 = 1,938.89/x
  3. Step 3: Cross multiply
    6,869.76x = 10,304.85 × 1,938.89
  4. Step 4: Simplify right side
    6,869.76x = 19,979,929.33
  5. Step 5: Solve for x
    x = 19,979,929.33/6,869.76
  6. Step 6: Final answer
    x = 2,908.39

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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.