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Finding the Fourth Proportional to 6,938.79, 10,408.18 and 2,321.79

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Solution

The fourth proportional to 6,938.79, 10,408.18 and 2,321.79 is: 3,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.79 : 10,408.18 = 2,321.79 : x
  2. Step 2: Convert to fraction form
    6,938.79/10,408.18 = 2,321.79/x
  3. Step 3: Cross multiply
    6,938.79x = 10,408.18 × 2,321.79
  4. Step 4: Simplify right side
    6,938.79x = 24,165,606.83
  5. Step 5: Solve for x
    x = 24,165,606.83/6,938.79
  6. Step 6: Final answer
    x = 3,482.68

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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.