Home / 1,729.05-2,386.13-943.10

Finding the Fourth Proportional to 1,729.05, 2,386.13 and 943.10

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Solution

The fourth proportional to 1,729.05, 2,386.13 and 943.10 is: 1,301.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.05 : 2,386.13 = 943.10 : x
  2. Step 2: Convert to fraction form
    1,729.05/2,386.13 = 943.10/x
  3. Step 3: Cross multiply
    1,729.05x = 2,386.13 × 943.10
  4. Step 4: Simplify right side
    1,729.05x = 2,250,366.17
  5. Step 5: Solve for x
    x = 2,250,366.17/1,729.05
  6. Step 6: Final answer
    x = 1,301.50

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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.