Home / 2,754.60-4,130.52-905.52

Finding the Fourth Proportional to 2,754.60, 4,130.52 and 905.52

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Solution

The fourth proportional to 2,754.60, 4,130.52 and 905.52 is: 1,357.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754.60 : 4,130.52 = 905.52 : x
  2. Step 2: Convert to fraction form
    2,754.60/4,130.52 = 905.52/x
  3. Step 3: Cross multiply
    2,754.60x = 4,130.52 × 905.52
  4. Step 4: Simplify right side
    2,754.60x = 3,740,268.47
  5. Step 5: Solve for x
    x = 3,740,268.47/2,754.60
  6. Step 6: Final answer
    x = 1,357.83

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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.