Home / 5,270.27-7,909.49-1,986.35

Finding the Fourth Proportional to 5,270.27, 7,909.49 and 1,986.35

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Solution

The fourth proportional to 5,270.27, 7,909.49 and 1,986.35 is: 2,981.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.27 : 7,909.49 = 1,986.35 : x
  2. Step 2: Convert to fraction form
    5,270.27/7,909.49 = 1,986.35/x
  3. Step 3: Cross multiply
    5,270.27x = 7,909.49 × 1,986.35
  4. Step 4: Simplify right side
    5,270.27x = 15,711,005.53
  5. Step 5: Solve for x
    x = 15,711,005.53/5,270.27
  6. Step 6: Final answer
    x = 2,981.06

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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.