Home / 2,865.10-4,295.60-1,108.60

Finding the Fourth Proportional to 2,865.10, 4,295.60 and 1,108.60

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Solution

The fourth proportional to 2,865.10, 4,295.60 and 1,108.60 is: 1,662.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.10 : 4,295.60 = 1,108.60 : x
  2. Step 2: Convert to fraction form
    2,865.10/4,295.60 = 1,108.60/x
  3. Step 3: Cross multiply
    2,865.10x = 4,295.60 × 1,108.60
  4. Step 4: Simplify right side
    2,865.10x = 4,762,102.16
  5. Step 5: Solve for x
    x = 4,762,102.16/2,865.10
  6. Step 6: Final answer
    x = 1,662.11

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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.