Home / 1,515.44-2,263.41-1,238.42

Finding the Fourth Proportional to 1,515.44, 2,263.41 and 1,238.42

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Solution

The fourth proportional to 1,515.44, 2,263.41 and 1,238.42 is: 1,849.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.44 : 2,263.41 = 1,238.42 : x
  2. Step 2: Convert to fraction form
    1,515.44/2,263.41 = 1,238.42/x
  3. Step 3: Cross multiply
    1,515.44x = 2,263.41 × 1,238.42
  4. Step 4: Simplify right side
    1,515.44x = 2,803,057.87
  5. Step 5: Solve for x
    x = 2,803,057.87/1,515.44
  6. Step 6: Final answer
    x = 1,849.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.