Home / 1,681.27-2,320.28-935.29

Finding the Fourth Proportional to 1,681.27, 2,320.28 and 935.29

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Solution

The fourth proportional to 1,681.27, 2,320.28 and 935.29 is: 1,290.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.27 : 2,320.28 = 935.29 : x
  2. Step 2: Convert to fraction form
    1,681.27/2,320.28 = 935.29/x
  3. Step 3: Cross multiply
    1,681.27x = 2,320.28 × 935.29
  4. Step 4: Simplify right side
    1,681.27x = 2,170,134.68
  5. Step 5: Solve for x
    x = 2,170,134.68/1,681.27
  6. Step 6: Final answer
    x = 1,290.77

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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.