Home / 7,079.60-10,615.40-2,697.20

Finding the Fourth Proportional to 7,079.60, 10,615.40 and 2,697.20

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Solution

The fourth proportional to 7,079.60, 10,615.40 and 2,697.20 is: 4,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.60 : 10,615.40 = 2,697.20 : x
  2. Step 2: Convert to fraction form
    7,079.60/10,615.40 = 2,697.20/x
  3. Step 3: Cross multiply
    7,079.60x = 10,615.40 × 2,697.20
  4. Step 4: Simplify right side
    7,079.60x = 28,631,856.88
  5. Step 5: Solve for x
    x = 28,631,856.88/7,079.60
  6. Step 6: Final answer
    x = 4,044.28

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1.5x scale

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.