Home / 2,675.28-4,012.80-2,208.72

Finding the Fourth Proportional to 2,675.28, 4,012.80 and 2,208.72

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Solution

The fourth proportional to 2,675.28, 4,012.80 and 2,208.72 is: 3,312.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,675.28 : 4,012.80 = 2,208.72 : x
  2. Step 2: Convert to fraction form
    2,675.28/4,012.80 = 2,208.72/x
  3. Step 3: Cross multiply
    2,675.28x = 4,012.80 × 2,208.72
  4. Step 4: Simplify right side
    2,675.28x = 8,863,151.62
  5. Step 5: Solve for x
    x = 8,863,151.62/2,675.28
  6. Step 6: Final answer
    x = 3,312.98

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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.