Home / 6,749.20-10,116.60-2,587.60

Finding the Fourth Proportional to 6,749.20, 10,116.60 and 2,587.60

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Solution

The fourth proportional to 6,749.20, 10,116.60 and 2,587.60 is: 3,878.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749.20 : 10,116.60 = 2,587.60 : x
  2. Step 2: Convert to fraction form
    6,749.20/10,116.60 = 2,587.60/x
  3. Step 3: Cross multiply
    6,749.20x = 10,116.60 × 2,587.60
  4. Step 4: Simplify right side
    6,749.20x = 26,177,714.16
  5. Step 5: Solve for x
    x = 26,177,714.16/6,749.20
  6. Step 6: Final answer
    x = 3,878.64

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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.