Home / 1,729.05-2,386.14-943.14

Finding the Fourth Proportional to 1,729.05, 2,386.14 and 943.14

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Solution

The fourth proportional to 1,729.05, 2,386.14 and 943.14 is: 1,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.05 : 2,386.14 = 943.14 : x
  2. Step 2: Convert to fraction form
    1,729.05/2,386.14 = 943.14/x
  3. Step 3: Cross multiply
    1,729.05x = 2,386.14 × 943.14
  4. Step 4: Simplify right side
    1,729.05x = 2,250,464.08
  5. Step 5: Solve for x
    x = 2,250,464.08/1,729.05
  6. Step 6: Final answer
    x = 1,301.56

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1.5x scale

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.