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Finding the Fourth Proportional to 2,884.95, 4,327.56 and 805.14

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Solution

The fourth proportional to 2,884.95, 4,327.56 and 805.14 is: 1,207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.95 : 4,327.56 = 805.14 : x
  2. Step 2: Convert to fraction form
    2,884.95/4,327.56 = 805.14/x
  3. Step 3: Cross multiply
    2,884.95x = 4,327.56 × 805.14
  4. Step 4: Simplify right side
    2,884.95x = 3,484,291.66
  5. Step 5: Solve for x
    x = 3,484,291.66/2,884.95
  6. Step 6: Final answer
    x = 1,207.75

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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.