Home / 2,675.60-4,012.77-1,115.63

Finding the Fourth Proportional to 2,675.60, 4,012.77 and 1,115.63

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Solution

The fourth proportional to 2,675.60, 4,012.77 and 1,115.63 is: 1,673.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.60 : 4,012.77 = 1,115.63 : x
  2. Step 2: Convert to fraction form
    2,675.60/4,012.77 = 1,115.63/x
  3. Step 3: Cross multiply
    2,675.60x = 4,012.77 × 1,115.63
  4. Step 4: Simplify right side
    2,675.60x = 4,476,766.60
  5. Step 5: Solve for x
    x = 4,476,766.60/2,675.60
  6. Step 6: Final answer
    x = 1,673.18

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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.