Home / 6,869.60-10,306.34-1,939.29

Finding the Fourth Proportional to 6,869.60, 10,306.34 and 1,939.29

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Solution

The fourth proportional to 6,869.60, 10,306.34 and 1,939.29 is: 2,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.60 : 10,306.34 = 1,939.29 : x
  2. Step 2: Convert to fraction form
    6,869.60/10,306.34 = 1,939.29/x
  3. Step 3: Cross multiply
    6,869.60x = 10,306.34 × 1,939.29
  4. Step 4: Simplify right side
    6,869.60x = 19,986,982.10
  5. Step 5: Solve for x
    x = 19,986,982.10/6,869.60
  6. Step 6: Final answer
    x = 2,909.48

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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.