Home / 5,151.44-7,108.56-2,913.20

Finding the Fourth Proportional to 5,151.44, 7,108.56 and 2,913.20

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Solution

The fourth proportional to 5,151.44, 7,108.56 and 2,913.20 is: 4,019.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,151.44 : 7,108.56 = 2,913.20 : x
  2. Step 2: Convert to fraction form
    5,151.44/7,108.56 = 2,913.20/x
  3. Step 3: Cross multiply
    5,151.44x = 7,108.56 × 2,913.20
  4. Step 4: Simplify right side
    5,151.44x = 20,708,656.99
  5. Step 5: Solve for x
    x = 20,708,656.99/5,151.44
  6. Step 6: Final answer
    x = 4,019.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.