Home / 3,988.08-5,503.99-2,309.47

Finding the Fourth Proportional to 3,988.08, 5,503.99 and 2,309.47

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Solution

The fourth proportional to 3,988.08, 5,503.99 and 2,309.47 is: 3,187.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.08 : 5,503.99 = 2,309.47 : x
  2. Step 2: Convert to fraction form
    3,988.08/5,503.99 = 2,309.47/x
  3. Step 3: Cross multiply
    3,988.08x = 5,503.99 × 2,309.47
  4. Step 4: Simplify right side
    3,988.08x = 12,711,299.79
  5. Step 5: Solve for x
    x = 12,711,299.79/3,988.08
  6. Step 6: Final answer
    x = 3,187.32

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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.