Home / 2,225.19-3,337.78-909.56

Finding the Fourth Proportional to 2,225.19, 3,337.78 and 909.56

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Solution

The fourth proportional to 2,225.19, 3,337.78 and 909.56 is: 1,364.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.19 : 3,337.78 = 909.56 : x
  2. Step 2: Convert to fraction form
    2,225.19/3,337.78 = 909.56/x
  3. Step 3: Cross multiply
    2,225.19x = 3,337.78 × 909.56
  4. Step 4: Simplify right side
    2,225.19x = 3,035,918.95
  5. Step 5: Solve for x
    x = 3,035,918.95/2,225.19
  6. Step 6: Final answer
    x = 1,364.34

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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.