Home / 1,729.56-2,386.81-943.61

Finding the Fourth Proportional to 1,729.56, 2,386.81 and 943.61

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Solution

The fourth proportional to 1,729.56, 2,386.81 and 943.61 is: 1,302.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.56 : 2,386.81 = 943.61 : x
  2. Step 2: Convert to fraction form
    1,729.56/2,386.81 = 943.61/x
  3. Step 3: Cross multiply
    1,729.56x = 2,386.81 × 943.61
  4. Step 4: Simplify right side
    1,729.56x = 2,252,211.09
  5. Step 5: Solve for x
    x = 2,252,211.09/1,729.56
  6. Step 6: Final answer
    x = 1,302.19

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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.