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Finding the Fourth Proportional to 2,885.13, 4,327.20 and 804.57

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Solution

The fourth proportional to 2,885.13, 4,327.20 and 804.57 is: 1,206.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.13 : 4,327.20 = 804.57 : x
  2. Step 2: Convert to fraction form
    2,885.13/4,327.20 = 804.57/x
  3. Step 3: Cross multiply
    2,885.13x = 4,327.20 × 804.57
  4. Step 4: Simplify right side
    2,885.13x = 3,481,535.30
  5. Step 5: Solve for x
    x = 3,481,535.30/2,885.13
  6. Step 6: Final answer
    x = 1,206.72

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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.