Home / 6,869.40-10,300.86-3,581.88

Finding the Fourth Proportional to 6,869.40, 10,300.86 and 3,581.88

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Solution

The fourth proportional to 6,869.40, 10,300.86 and 3,581.88 is: 5,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.40 : 10,300.86 = 3,581.88 : x
  2. Step 2: Convert to fraction form
    6,869.40/10,300.86 = 3,581.88/x
  3. Step 3: Cross multiply
    6,869.40x = 10,300.86 × 3,581.88
  4. Step 4: Simplify right side
    6,869.40x = 36,896,444.42
  5. Step 5: Solve for x
    x = 36,896,444.42/6,869.40
  6. Step 6: Final answer
    x = 5,371.13

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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.