Home / 2,515.25-3,769.63-1,860.77

Finding the Fourth Proportional to 2,515.25, 3,769.63 and 1,860.77

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Solution

The fourth proportional to 2,515.25, 3,769.63 and 1,860.77 is: 2,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.25 : 3,769.63 = 1,860.77 : x
  2. Step 2: Convert to fraction form
    2,515.25/3,769.63 = 1,860.77/x
  3. Step 3: Cross multiply
    2,515.25x = 3,769.63 × 1,860.77
  4. Step 4: Simplify right side
    2,515.25x = 7,014,414.42
  5. Step 5: Solve for x
    x = 7,014,414.42/2,515.25
  6. Step 6: Final answer
    x = 2,788.75

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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.