Home / 1,515.24-2,270.70-1,513.80

Finding the Fourth Proportional to 1,515.24, 2,270.70 and 1,513.80

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Solution

The fourth proportional to 1,515.24, 2,270.70 and 1,513.80 is: 2,268.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.24 : 2,270.70 = 1,513.80 : x
  2. Step 2: Convert to fraction form
    1,515.24/2,270.70 = 1,513.80/x
  3. Step 3: Cross multiply
    1,515.24x = 2,270.70 × 1,513.80
  4. Step 4: Simplify right side
    1,515.24x = 3,437,385.66
  5. Step 5: Solve for x
    x = 3,437,385.66/1,515.24
  6. Step 6: Final answer
    x = 2,268.54

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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.