Home / 1,972.18-2,721.84-1,133.02

Finding the Fourth Proportional to 1,972.18, 2,721.84 and 1,133.02

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Solution

The fourth proportional to 1,972.18, 2,721.84 and 1,133.02 is: 1,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.18 : 2,721.84 = 1,133.02 : x
  2. Step 2: Convert to fraction form
    1,972.18/2,721.84 = 1,133.02/x
  3. Step 3: Cross multiply
    1,972.18x = 2,721.84 × 1,133.02
  4. Step 4: Simplify right side
    1,972.18x = 3,083,899.16
  5. Step 5: Solve for x
    x = 3,083,899.16/1,972.18
  6. Step 6: Final answer
    x = 1,563.70

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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.