Home / 1,452.51-2,001.39-985.95

Finding the Fourth Proportional to 1,452.51, 2,001.39 and 985.95

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Solution

The fourth proportional to 1,452.51, 2,001.39 and 985.95 is: 1,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.51 : 2,001.39 = 985.95 : x
  2. Step 2: Convert to fraction form
    1,452.51/2,001.39 = 985.95/x
  3. Step 3: Cross multiply
    1,452.51x = 2,001.39 × 985.95
  4. Step 4: Simplify right side
    1,452.51x = 1,973,270.47
  5. Step 5: Solve for x
    x = 1,973,270.47/1,452.51
  6. Step 6: Final answer
    x = 1,358.52

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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.