Home / 1,447.29-2,161.67-1,252.89

Finding the Fourth Proportional to 1,447.29, 2,161.67 and 1,252.89

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Solution

The fourth proportional to 1,447.29, 2,161.67 and 1,252.89 is: 1,871.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.29 : 2,161.67 = 1,252.89 : x
  2. Step 2: Convert to fraction form
    1,447.29/2,161.67 = 1,252.89/x
  3. Step 3: Cross multiply
    1,447.29x = 2,161.67 × 1,252.89
  4. Step 4: Simplify right side
    1,447.29x = 2,708,328.46
  5. Step 5: Solve for x
    x = 2,708,328.46/1,447.29
  6. Step 6: Final answer
    x = 1,871.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.