Home / 2,338.47-3,227.07-1,290.53

Finding the Fourth Proportional to 2,338.47, 3,227.07 and 1,290.53

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Solution

The fourth proportional to 2,338.47, 3,227.07 and 1,290.53 is: 1,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,338.47 : 3,227.07 = 1,290.53 : x
  2. Step 2: Convert to fraction form
    2,338.47/3,227.07 = 1,290.53/x
  3. Step 3: Cross multiply
    2,338.47x = 3,227.07 × 1,290.53
  4. Step 4: Simplify right side
    2,338.47x = 4,164,643.55
  5. Step 5: Solve for x
    x = 4,164,643.55/2,338.47
  6. Step 6: Final answer
    x = 1,780.93

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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.