Home / 1,972.46-2,721.99-1,088.31

Finding the Fourth Proportional to 1,972.46, 2,721.99 and 1,088.31

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Solution

The fourth proportional to 1,972.46, 2,721.99 and 1,088.31 is: 1,501.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.46 : 2,721.99 = 1,088.31 : x
  2. Step 2: Convert to fraction form
    1,972.46/2,721.99 = 1,088.31/x
  3. Step 3: Cross multiply
    1,972.46x = 2,721.99 × 1,088.31
  4. Step 4: Simplify right side
    1,972.46x = 2,962,368.94
  5. Step 5: Solve for x
    x = 2,962,368.94/1,972.46
  6. Step 6: Final answer
    x = 1,501.87

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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.