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Finding the Fourth Proportional to 837.60, 1,251.48 and 837.60

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Solution

The fourth proportional to 837.60, 1,251.48 and 837.60 is: 1,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.60 : 1,251.48 = 837.60 : x
  2. Step 2: Convert to fraction form
    837.60/1,251.48 = 837.60/x
  3. Step 3: Cross multiply
    837.60x = 1,251.48 × 837.60
  4. Step 4: Simplify right side
    837.60x = 1,048,239.65
  5. Step 5: Solve for x
    x = 1,048,239.65/837.60
  6. Step 6: Final answer
    x = 1,251.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.