Home / 2,225.80-3,338.70-2,117.80

Finding the Fourth Proportional to 2,225.80, 3,338.70 and 2,117.80

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Solution

The fourth proportional to 2,225.80, 3,338.70 and 2,117.80 is: 3,176.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.80 : 3,338.70 = 2,117.80 : x
  2. Step 2: Convert to fraction form
    2,225.80/3,338.70 = 2,117.80/x
  3. Step 3: Cross multiply
    2,225.80x = 3,338.70 × 2,117.80
  4. Step 4: Simplify right side
    2,225.80x = 7,070,698.86
  5. Step 5: Solve for x
    x = 7,070,698.86/2,225.80
  6. Step 6: Final answer
    x = 3,176.70

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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.