Home / 5,272.29-7,908.98-1,988.15

Finding the Fourth Proportional to 5,272.29, 7,908.98 and 1,988.15

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Solution

The fourth proportional to 5,272.29, 7,908.98 and 1,988.15 is: 2,982.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.29 : 7,908.98 = 1,988.15 : x
  2. Step 2: Convert to fraction form
    5,272.29/7,908.98 = 1,988.15/x
  3. Step 3: Cross multiply
    5,272.29x = 7,908.98 × 1,988.15
  4. Step 4: Simplify right side
    5,272.29x = 15,724,189.10
  5. Step 5: Solve for x
    x = 15,724,189.10/5,272.29
  6. Step 6: Final answer
    x = 2,982.42

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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.