Home / 2,272.38-3,135.56-1,277.62

Finding the Fourth Proportional to 2,272.38, 3,135.56 and 1,277.62

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Solution

The fourth proportional to 2,272.38, 3,135.56 and 1,277.62 is: 1,762.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.38 : 3,135.56 = 1,277.62 : x
  2. Step 2: Convert to fraction form
    2,272.38/3,135.56 = 1,277.62/x
  3. Step 3: Cross multiply
    2,272.38x = 3,135.56 × 1,277.62
  4. Step 4: Simplify right side
    2,272.38x = 4,006,054.17
  5. Step 5: Solve for x
    x = 4,006,054.17/2,272.38
  6. Step 6: Final answer
    x = 1,762.93

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1.5x scale

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.