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Finding the Fourth Proportional to 7,679, 10,597.06 and 4,321.87

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Solution

The fourth proportional to 7,679, 10,597.06 and 4,321.87 is: 5,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679 : 10,597.06 = 4,321.87 : x
  2. Step 2: Convert to fraction form
    7,679/10,597.06 = 4,321.87/x
  3. Step 3: Cross multiply
    7,679x = 10,597.06 × 4,321.87
  4. Step 4: Simplify right side
    7,679x = 45,799,115.70
  5. Step 5: Solve for x
    x = 45,799,115.70/7,679
  6. Step 6: Final answer
    x = 5,964.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.