Home / 3,118.08-4,675.20-2,822.40

Finding the Fourth Proportional to 3,118.08, 4,675.20 and 2,822.40

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Solution

The fourth proportional to 3,118.08, 4,675.20 and 2,822.40 is: 4,231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.08 : 4,675.20 = 2,822.40 : x
  2. Step 2: Convert to fraction form
    3,118.08/4,675.20 = 2,822.40/x
  3. Step 3: Cross multiply
    3,118.08x = 4,675.20 × 2,822.40
  4. Step 4: Simplify right side
    3,118.08x = 13,195,284.48
  5. Step 5: Solve for x
    x = 13,195,284.48/3,118.08
  6. Step 6: Final answer
    x = 4,231.86

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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.