Home / 1,729.14-2,386.17-943.20

Finding the Fourth Proportional to 1,729.14, 2,386.17 and 943.20

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Solution

The fourth proportional to 1,729.14, 2,386.17 and 943.20 is: 1,301.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.14 : 2,386.17 = 943.20 : x
  2. Step 2: Convert to fraction form
    1,729.14/2,386.17 = 943.20/x
  3. Step 3: Cross multiply
    1,729.14x = 2,386.17 × 943.20
  4. Step 4: Simplify right side
    1,729.14x = 2,250,635.54
  5. Step 5: Solve for x
    x = 2,250,635.54/1,729.14
  6. Step 6: Final answer
    x = 1,301.59

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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.