Home / 2,862.46-4,291.59-913.54

Finding the Fourth Proportional to 2,862.46, 4,291.59 and 913.54

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Solution

The fourth proportional to 2,862.46, 4,291.59 and 913.54 is: 1,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.46 : 4,291.59 = 913.54 : x
  2. Step 2: Convert to fraction form
    2,862.46/4,291.59 = 913.54/x
  3. Step 3: Cross multiply
    2,862.46x = 4,291.59 × 913.54
  4. Step 4: Simplify right side
    2,862.46x = 3,920,539.13
  5. Step 5: Solve for x
    x = 3,920,539.13/2,862.46
  6. Step 6: Final answer
    x = 1,369.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.