Home / 2,575.04-3,860.10-1,275.80

Finding the Fourth Proportional to 2,575.04, 3,860.10 and 1,275.80

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Solution

The fourth proportional to 2,575.04, 3,860.10 and 1,275.80 is: 1,912.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.04 : 3,860.10 = 1,275.80 : x
  2. Step 2: Convert to fraction form
    2,575.04/3,860.10 = 1,275.80/x
  3. Step 3: Cross multiply
    2,575.04x = 3,860.10 × 1,275.80
  4. Step 4: Simplify right side
    2,575.04x = 4,924,696.28
  5. Step 5: Solve for x
    x = 4,924,696.28/2,575.04
  6. Step 6: Final answer
    x = 1,912.48

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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.