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Finding the Fourth Proportional to 5,391.78, 8,040.05 and 4,736.34

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Solution

The fourth proportional to 5,391.78, 8,040.05 and 4,736.34 is: 7,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.78 : 8,040.05 = 4,736.34 : x
  2. Step 2: Convert to fraction form
    5,391.78/8,040.05 = 4,736.34/x
  3. Step 3: Cross multiply
    5,391.78x = 8,040.05 × 4,736.34
  4. Step 4: Simplify right side
    5,391.78x = 38,080,410.42
  5. Step 5: Solve for x
    x = 38,080,410.42/5,391.78
  6. Step 6: Final answer
    x = 7,062.68

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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.