Home / 1,972.04-2,721.34-1,132.80

Finding the Fourth Proportional to 1,972.04, 2,721.34 and 1,132.80

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Solution

The fourth proportional to 1,972.04, 2,721.34 and 1,132.80 is: 1,563.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.04 : 2,721.34 = 1,132.80 : x
  2. Step 2: Convert to fraction form
    1,972.04/2,721.34 = 1,132.80/x
  3. Step 3: Cross multiply
    1,972.04x = 2,721.34 × 1,132.80
  4. Step 4: Simplify right side
    1,972.04x = 3,082,733.95
  5. Step 5: Solve for x
    x = 3,082,733.95/1,972.04
  6. Step 6: Final answer
    x = 1,563.22

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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.