Home / 2,752.80-4,128.57-1,192.74

Finding the Fourth Proportional to 2,752.80, 4,128.57 and 1,192.74

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Solution

The fourth proportional to 2,752.80, 4,128.57 and 1,192.74 is: 1,788.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.80 : 4,128.57 = 1,192.74 : x
  2. Step 2: Convert to fraction form
    2,752.80/4,128.57 = 1,192.74/x
  3. Step 3: Cross multiply
    2,752.80x = 4,128.57 × 1,192.74
  4. Step 4: Simplify right side
    2,752.80x = 4,924,310.58
  5. Step 5: Solve for x
    x = 4,924,310.58/2,752.80
  6. Step 6: Final answer
    x = 1,788.84

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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.