Home / 2,132.16-3,191.76-1,972.32

Finding the Fourth Proportional to 2,132.16, 3,191.76 and 1,972.32

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Solution

The fourth proportional to 2,132.16, 3,191.76 and 1,972.32 is: 2,952.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.16 : 3,191.76 = 1,972.32 : x
  2. Step 2: Convert to fraction form
    2,132.16/3,191.76 = 1,972.32/x
  3. Step 3: Cross multiply
    2,132.16x = 3,191.76 × 1,972.32
  4. Step 4: Simplify right side
    2,132.16x = 6,295,172.08
  5. Step 5: Solve for x
    x = 6,295,172.08/2,132.16
  6. Step 6: Final answer
    x = 2,952.49

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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.