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Finding the Fourth Proportional to 2,958.80, 4,408.42 and 2,916.56

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Solution

The fourth proportional to 2,958.80, 4,408.42 and 2,916.56 is: 4,345.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.80 : 4,408.42 = 2,916.56 : x
  2. Step 2: Convert to fraction form
    2,958.80/4,408.42 = 2,916.56/x
  3. Step 3: Cross multiply
    2,958.80x = 4,408.42 × 2,916.56
  4. Step 4: Simplify right side
    2,958.80x = 12,857,421.44
  5. Step 5: Solve for x
    x = 12,857,421.44/2,958.80
  6. Step 6: Final answer
    x = 4,345.49

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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.