Home / 2,815.51-4,224.48-1,517.89

Finding the Fourth Proportional to 2,815.51, 4,224.48 and 1,517.89

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Solution

The fourth proportional to 2,815.51, 4,224.48 and 1,517.89 is: 2,277.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.51 : 4,224.48 = 1,517.89 : x
  2. Step 2: Convert to fraction form
    2,815.51/4,224.48 = 1,517.89/x
  3. Step 3: Cross multiply
    2,815.51x = 4,224.48 × 1,517.89
  4. Step 4: Simplify right side
    2,815.51x = 6,412,295.95
  5. Step 5: Solve for x
    x = 6,412,295.95/2,815.51
  6. Step 6: Final answer
    x = 2,277.49

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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.