Home / 2,270.07-3,132.30-1,275.39

Finding the Fourth Proportional to 2,270.07, 3,132.30 and 1,275.39

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Solution

The fourth proportional to 2,270.07, 3,132.30 and 1,275.39 is: 1,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.07 : 3,132.30 = 1,275.39 : x
  2. Step 2: Convert to fraction form
    2,270.07/3,132.30 = 1,275.39/x
  3. Step 3: Cross multiply
    2,270.07x = 3,132.30 × 1,275.39
  4. Step 4: Simplify right side
    2,270.07x = 3,994,904.10
  5. Step 5: Solve for x
    x = 3,994,904.10/2,270.07
  6. Step 6: Final answer
    x = 1,759.82

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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.