Home / 2,561.21-3,842.90-1,523.20

Finding the Fourth Proportional to 2,561.21, 3,842.90 and 1,523.20

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Solution

The fourth proportional to 2,561.21, 3,842.90 and 1,523.20 is: 2,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.21 : 3,842.90 = 1,523.20 : x
  2. Step 2: Convert to fraction form
    2,561.21/3,842.90 = 1,523.20/x
  3. Step 3: Cross multiply
    2,561.21x = 3,842.90 × 1,523.20
  4. Step 4: Simplify right side
    2,561.21x = 5,853,505.28
  5. Step 5: Solve for x
    x = 5,853,505.28/2,561.21
  6. Step 6: Final answer
    x = 2,285.45

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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.