Home / 2,129.22-2,938.21-1,244.97

Finding the Fourth Proportional to 2,129.22, 2,938.21 and 1,244.97

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Solution

The fourth proportional to 2,129.22, 2,938.21 and 1,244.97 is: 1,717.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.22 : 2,938.21 = 1,244.97 : x
  2. Step 2: Convert to fraction form
    2,129.22/2,938.21 = 1,244.97/x
  3. Step 3: Cross multiply
    2,129.22x = 2,938.21 × 1,244.97
  4. Step 4: Simplify right side
    2,129.22x = 3,657,980.19
  5. Step 5: Solve for x
    x = 3,657,980.19/2,129.22
  6. Step 6: Final answer
    x = 1,717.99

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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.