Home / 2,147.40-2,963.16-1,263.42

Finding the Fourth Proportional to 2,147.40, 2,963.16 and 1,263.42

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Solution

The fourth proportional to 2,147.40, 2,963.16 and 1,263.42 is: 1,743.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.40 : 2,963.16 = 1,263.42 : x
  2. Step 2: Convert to fraction form
    2,147.40/2,963.16 = 1,263.42/x
  3. Step 3: Cross multiply
    2,147.40x = 2,963.16 × 1,263.42
  4. Step 4: Simplify right side
    2,147.40x = 3,743,715.61
  5. Step 5: Solve for x
    x = 3,743,715.61/2,147.40
  6. Step 6: Final answer
    x = 1,743.37

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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.