Home / 3,113.60-4,675.80-2,195.60

Finding the Fourth Proportional to 3,113.60, 4,675.80 and 2,195.60

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Solution

The fourth proportional to 3,113.60, 4,675.80 and 2,195.60 is: 3,297.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.60 : 4,675.80 = 2,195.60 : x
  2. Step 2: Convert to fraction form
    3,113.60/4,675.80 = 2,195.60/x
  3. Step 3: Cross multiply
    3,113.60x = 4,675.80 × 2,195.60
  4. Step 4: Simplify right side
    3,113.60x = 10,266,186.48
  5. Step 5: Solve for x
    x = 10,266,186.48/3,113.60
  6. Step 6: Final answer
    x = 3,297.21

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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.