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Finding the Fourth Proportional to 2,884.90, 4,327.34 and 804.90

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Solution

The fourth proportional to 2,884.90, 4,327.34 and 804.90 is: 1,207.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,884.90 : 4,327.34 = 804.90 : x
  2. Step 2: Convert to fraction form
    2,884.90/4,327.34 = 804.90/x
  3. Step 3: Cross multiply
    2,884.90x = 4,327.34 × 804.90
  4. Step 4: Simplify right side
    2,884.90x = 3,483,075.97
  5. Step 5: Solve for x
    x = 3,483,075.97/2,884.90
  6. Step 6: Final answer
    x = 1,207.35

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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.