Home / 1,729.66-2,386.80-943.68

Finding the Fourth Proportional to 1,729.66, 2,386.80 and 943.68

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Solution

The fourth proportional to 1,729.66, 2,386.80 and 943.68 is: 1,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.66 : 2,386.80 = 943.68 : x
  2. Step 2: Convert to fraction form
    1,729.66/2,386.80 = 943.68/x
  3. Step 3: Cross multiply
    1,729.66x = 2,386.80 × 943.68
  4. Step 4: Simplify right side
    1,729.66x = 2,252,375.42
  5. Step 5: Solve for x
    x = 2,252,375.42/1,729.66
  6. Step 6: Final answer
    x = 1,302.21

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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.