Home / 1,972.49-2,722.08-1,088.30

Finding the Fourth Proportional to 1,972.49, 2,722.08 and 1,088.30

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Solution

The fourth proportional to 1,972.49, 2,722.08 and 1,088.30 is: 1,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.49 : 2,722.08 = 1,088.30 : x
  2. Step 2: Convert to fraction form
    1,972.49/2,722.08 = 1,088.30/x
  3. Step 3: Cross multiply
    1,972.49x = 2,722.08 × 1,088.30
  4. Step 4: Simplify right side
    1,972.49x = 2,962,439.66
  5. Step 5: Solve for x
    x = 2,962,439.66/1,972.49
  6. Step 6: Final answer
    x = 1,501.88

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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.