Home / 3,188.03-4,398.80-1,861.13

Finding the Fourth Proportional to 3,188.03, 4,398.80 and 1,861.13

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Solution

The fourth proportional to 3,188.03, 4,398.80 and 1,861.13 is: 2,567.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.03 : 4,398.80 = 1,861.13 : x
  2. Step 2: Convert to fraction form
    3,188.03/4,398.80 = 1,861.13/x
  3. Step 3: Cross multiply
    3,188.03x = 4,398.80 × 1,861.13
  4. Step 4: Simplify right side
    3,188.03x = 8,186,757.47
  5. Step 5: Solve for x
    x = 8,186,757.47/3,188.03
  6. Step 6: Final answer
    x = 2,567.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.