Home / 2,613.75-3,915.39-1,573.20

Finding the Fourth Proportional to 2,613.75, 3,915.39 and 1,573.20

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Solution

The fourth proportional to 2,613.75, 3,915.39 and 1,573.20 is: 2,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613.75 : 3,915.39 = 1,573.20 : x
  2. Step 2: Convert to fraction form
    2,613.75/3,915.39 = 1,573.20/x
  3. Step 3: Cross multiply
    2,613.75x = 3,915.39 × 1,573.20
  4. Step 4: Simplify right side
    2,613.75x = 6,159,691.55
  5. Step 5: Solve for x
    x = 6,159,691.55/2,613.75
  6. Step 6: Final answer
    x = 2,356.65

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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.