Home / 1,972.88-2,722.60-1,088.66

Finding the Fourth Proportional to 1,972.88, 2,722.60 and 1,088.66

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Solution

The fourth proportional to 1,972.88, 2,722.60 and 1,088.66 is: 1,502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972.88 : 2,722.60 = 1,088.66 : x
  2. Step 2: Convert to fraction form
    1,972.88/2,722.60 = 1,088.66/x
  3. Step 3: Cross multiply
    1,972.88x = 2,722.60 × 1,088.66
  4. Step 4: Simplify right side
    1,972.88x = 2,963,985.72
  5. Step 5: Solve for x
    x = 2,963,985.72/1,972.88
  6. Step 6: Final answer
    x = 1,502.36

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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.