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Finding the Fourth Proportional to 3,400.66, 5,100.78 and 1,060.47

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Solution

The fourth proportional to 3,400.66, 5,100.78 and 1,060.47 is: 1,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.66 : 5,100.78 = 1,060.47 : x
  2. Step 2: Convert to fraction form
    3,400.66/5,100.78 = 1,060.47/x
  3. Step 3: Cross multiply
    3,400.66x = 5,100.78 × 1,060.47
  4. Step 4: Simplify right side
    3,400.66x = 5,409,224.17
  5. Step 5: Solve for x
    x = 5,409,224.17/3,400.66
  6. Step 6: Final answer
    x = 1,590.64

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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.