Home / 2,940.44-4,387.93-2,613.20

Finding the Fourth Proportional to 2,940.44, 4,387.93 and 2,613.20

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Solution

The fourth proportional to 2,940.44, 4,387.93 and 2,613.20 is: 3,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.44 : 4,387.93 = 2,613.20 : x
  2. Step 2: Convert to fraction form
    2,940.44/4,387.93 = 2,613.20/x
  3. Step 3: Cross multiply
    2,940.44x = 4,387.93 × 2,613.20
  4. Step 4: Simplify right side
    2,940.44x = 11,466,538.68
  5. Step 5: Solve for x
    x = 11,466,538.68/2,940.44
  6. Step 6: Final answer
    x = 3,899.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.