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Finding the Fourth Proportional to 5,148.56, 7,679.62 and 4,500.56

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Solution

The fourth proportional to 5,148.56, 7,679.62 and 4,500.56 is: 6,713.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.56 : 7,679.62 = 4,500.56 : x
  2. Step 2: Convert to fraction form
    5,148.56/7,679.62 = 4,500.56/x
  3. Step 3: Cross multiply
    5,148.56x = 7,679.62 × 4,500.56
  4. Step 4: Simplify right side
    5,148.56x = 34,562,590.59
  5. Step 5: Solve for x
    x = 34,562,590.59/5,148.56
  6. Step 6: Final answer
    x = 6,713.06

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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.