Home / 2,862.10-4,291.10-1,105.60

Finding the Fourth Proportional to 2,862.10, 4,291.10 and 1,105.60

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Solution

The fourth proportional to 2,862.10, 4,291.10 and 1,105.60 is: 1,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.10 : 4,291.10 = 1,105.60 : x
  2. Step 2: Convert to fraction form
    2,862.10/4,291.10 = 1,105.60/x
  3. Step 3: Cross multiply
    2,862.10x = 4,291.10 × 1,105.60
  4. Step 4: Simplify right side
    2,862.10x = 4,744,240.16
  5. Step 5: Solve for x
    x = 4,744,240.16/2,862.10
  6. Step 6: Final answer
    x = 1,657.61

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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.