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Finding the Fourth Proportional to 4,881.34, 7,322.82 and 1,958.05

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Solution

The fourth proportional to 4,881.34, 7,322.82 and 1,958.05 is: 2,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.34 : 7,322.82 = 1,958.05 : x
  2. Step 2: Convert to fraction form
    4,881.34/7,322.82 = 1,958.05/x
  3. Step 3: Cross multiply
    4,881.34x = 7,322.82 × 1,958.05
  4. Step 4: Simplify right side
    4,881.34x = 14,338,447.70
  5. Step 5: Solve for x
    x = 14,338,447.70/4,881.34
  6. Step 6: Final answer
    x = 2,937.40

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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.