Home / 2,764.12-3,814.50-1,505.20

Finding the Fourth Proportional to 2,764.12, 3,814.50 and 1,505.20

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Solution

The fourth proportional to 2,764.12, 3,814.50 and 1,505.20 is: 2,077.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.12 : 3,814.50 = 1,505.20 : x
  2. Step 2: Convert to fraction form
    2,764.12/3,814.50 = 1,505.20/x
  3. Step 3: Cross multiply
    2,764.12x = 3,814.50 × 1,505.20
  4. Step 4: Simplify right side
    2,764.12x = 5,741,585.40
  5. Step 5: Solve for x
    x = 5,741,585.40/2,764.12
  6. Step 6: Final answer
    x = 2,077.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.