Home / 1,506.29-2,078.40-868.13

Finding the Fourth Proportional to 1,506.29, 2,078.40 and 868.13

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Solution

The fourth proportional to 1,506.29, 2,078.40 and 868.13 is: 1,197.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.29 : 2,078.40 = 868.13 : x
  2. Step 2: Convert to fraction form
    1,506.29/2,078.40 = 868.13/x
  3. Step 3: Cross multiply
    1,506.29x = 2,078.40 × 868.13
  4. Step 4: Simplify right side
    1,506.29x = 1,804,311
  5. Step 5: Solve for x
    x = 1,804,311/1,506.29
  6. Step 6: Final answer
    x = 1,197.85

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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.