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Finding the Fourth Proportional to 2,225.26, 3,337.86 and 909.71

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Solution

The fourth proportional to 2,225.26, 3,337.86 and 909.71 is: 1,364.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.26 : 3,337.86 = 909.71 : x
  2. Step 2: Convert to fraction form
    2,225.26/3,337.86 = 909.71/x
  3. Step 3: Cross multiply
    2,225.26x = 3,337.86 × 909.71
  4. Step 4: Simplify right side
    2,225.26x = 3,036,497.52
  5. Step 5: Solve for x
    x = 3,036,497.52/2,225.26
  6. Step 6: Final answer
    x = 1,364.56

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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.