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Finding the Fourth Proportional to 848.48, 1,266.26 and 826.60

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Solution

The fourth proportional to 848.48, 1,266.26 and 826.60 is: 1,233.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.48 : 1,266.26 = 826.60 : x
  2. Step 2: Convert to fraction form
    848.48/1,266.26 = 826.60/x
  3. Step 3: Cross multiply
    848.48x = 1,266.26 × 826.60
  4. Step 4: Simplify right side
    848.48x = 1,046,690.52
  5. Step 5: Solve for x
    x = 1,046,690.52/848.48
  6. Step 6: Final answer
    x = 1,233.61

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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.