Home / 2,207.80-3,046.56-1,263.40

Finding the Fourth Proportional to 2,207.80, 3,046.56 and 1,263.40

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Solution

The fourth proportional to 2,207.80, 3,046.56 and 1,263.40 is: 1,743.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.80 : 3,046.56 = 1,263.40 : x
  2. Step 2: Convert to fraction form
    2,207.80/3,046.56 = 1,263.40/x
  3. Step 3: Cross multiply
    2,207.80x = 3,046.56 × 1,263.40
  4. Step 4: Simplify right side
    2,207.80x = 3,849,023.90
  5. Step 5: Solve for x
    x = 3,849,023.90/2,207.80
  6. Step 6: Final answer
    x = 1,743.38

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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.