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Finding the Fourth Proportional to 1,695.78, 2,540.25 and 848.93

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Solution

The fourth proportional to 1,695.78, 2,540.25 and 848.93 is: 1,271.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.78 : 2,540.25 = 848.93 : x
  2. Step 2: Convert to fraction form
    1,695.78/2,540.25 = 848.93/x
  3. Step 3: Cross multiply
    1,695.78x = 2,540.25 × 848.93
  4. Step 4: Simplify right side
    1,695.78x = 2,156,481.73
  5. Step 5: Solve for x
    x = 2,156,481.73/1,695.78
  6. Step 6: Final answer
    x = 1,271.68

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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.