Home / 2,995.20-4,147.20-2,937.60

Finding the Fourth Proportional to 2,995.20, 4,147.20 and 2,937.60

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Solution

The fourth proportional to 2,995.20, 4,147.20 and 2,937.60 is: 4,067.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.20 : 4,147.20 = 2,937.60 : x
  2. Step 2: Convert to fraction form
    2,995.20/4,147.20 = 2,937.60/x
  3. Step 3: Cross multiply
    2,995.20x = 4,147.20 × 2,937.60
  4. Step 4: Simplify right side
    2,995.20x = 12,182,814.72
  5. Step 5: Solve for x
    x = 12,182,814.72/2,995.20
  6. Step 6: Final answer
    x = 4,067.45

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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.