Home / 2,140.88-2,954.46-1,256.66

Finding the Fourth Proportional to 2,140.88, 2,954.46 and 1,256.66

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Solution

The fourth proportional to 2,140.88, 2,954.46 and 1,256.66 is: 1,734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.88 : 2,954.46 = 1,256.66 : x
  2. Step 2: Convert to fraction form
    2,140.88/2,954.46 = 1,256.66/x
  3. Step 3: Cross multiply
    2,140.88x = 2,954.46 × 1,256.66
  4. Step 4: Simplify right side
    2,140.88x = 3,712,751.70
  5. Step 5: Solve for x
    x = 3,712,751.70/2,140.88
  6. Step 6: Final answer
    x = 1,734.22

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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.