Home / 6,581.50-9,877.11-3,118.75

Finding the Fourth Proportional to 6,581.50, 9,877.11 and 3,118.75

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Solution

The fourth proportional to 6,581.50, 9,877.11 and 3,118.75 is: 4,680.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,581.50 : 9,877.11 = 3,118.75 : x
  2. Step 2: Convert to fraction form
    6,581.50/9,877.11 = 3,118.75/x
  3. Step 3: Cross multiply
    6,581.50x = 9,877.11 × 3,118.75
  4. Step 4: Simplify right side
    6,581.50x = 30,804,236.81
  5. Step 5: Solve for x
    x = 30,804,236.81/6,581.50
  6. Step 6: Final answer
    x = 4,680.43

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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.