Home / 1,972.04-2,721.42-1,132.75

Finding the Fourth Proportional to 1,972.04, 2,721.42 and 1,132.75

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Solution

The fourth proportional to 1,972.04, 2,721.42 and 1,132.75 is: 1,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.04 : 2,721.42 = 1,132.75 : x
  2. Step 2: Convert to fraction form
    1,972.04/2,721.42 = 1,132.75/x
  3. Step 3: Cross multiply
    1,972.04x = 2,721.42 × 1,132.75
  4. Step 4: Simplify right side
    1,972.04x = 3,082,688.51
  5. Step 5: Solve for x
    x = 3,082,688.51/1,972.04
  6. Step 6: Final answer
    x = 1,563.20

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1.5x scale

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.