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Finding the Fourth Proportional to 1,524.92, 2,290.46 and 909.83

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Solution

The fourth proportional to 1,524.92, 2,290.46 and 909.83 is: 1,366.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,524.92 : 2,290.46 = 909.83 : x
  2. Step 2: Convert to fraction form
    1,524.92/2,290.46 = 909.83/x
  3. Step 3: Cross multiply
    1,524.92x = 2,290.46 × 909.83
  4. Step 4: Simplify right side
    1,524.92x = 2,083,913.22
  5. Step 5: Solve for x
    x = 2,083,913.22/1,524.92
  6. Step 6: Final answer
    x = 1,366.58

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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.