Home / 1,972.75-2,722.36-1,088.53

Finding the Fourth Proportional to 1,972.75, 2,722.36 and 1,088.53

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Solution

The fourth proportional to 1,972.75, 2,722.36 and 1,088.53 is: 1,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.75 : 2,722.36 = 1,088.53 : x
  2. Step 2: Convert to fraction form
    1,972.75/2,722.36 = 1,088.53/x
  3. Step 3: Cross multiply
    1,972.75x = 2,722.36 × 1,088.53
  4. Step 4: Simplify right side
    1,972.75x = 2,963,370.53
  5. Step 5: Solve for x
    x = 2,963,370.53/1,972.75
  6. Step 6: Final answer
    x = 1,502.15

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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.