Home / 1,972.69-2,722.34-1,088.57

Finding the Fourth Proportional to 1,972.69, 2,722.34 and 1,088.57

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Solution

The fourth proportional to 1,972.69, 2,722.34 and 1,088.57 is: 1,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.69 : 2,722.34 = 1,088.57 : x
  2. Step 2: Convert to fraction form
    1,972.69/2,722.34 = 1,088.57/x
  3. Step 3: Cross multiply
    1,972.69x = 2,722.34 × 1,088.57
  4. Step 4: Simplify right side
    1,972.69x = 2,963,467.18
  5. Step 5: Solve for x
    x = 2,963,467.18/1,972.69
  6. Step 6: Final answer
    x = 1,502.25

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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.