Home / 2,141.84-2,954.50-1,257.47

Finding the Fourth Proportional to 2,141.84, 2,954.50 and 1,257.47

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Solution

The fourth proportional to 2,141.84, 2,954.50 and 1,257.47 is: 1,734.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.84 : 2,954.50 = 1,257.47 : x
  2. Step 2: Convert to fraction form
    2,141.84/2,954.50 = 1,257.47/x
  3. Step 3: Cross multiply
    2,141.84x = 2,954.50 × 1,257.47
  4. Step 4: Simplify right side
    2,141.84x = 3,715,177.20
  5. Step 5: Solve for x
    x = 3,715,177.20/2,141.84
  6. Step 6: Final answer
    x = 1,734.58

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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.