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Finding the Fourth Proportional to 5,154.85, 7,734.30 and 3,075.85

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Solution

The fourth proportional to 5,154.85, 7,734.30 and 3,075.85 is: 4,614.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.85 : 7,734.30 = 3,075.85 : x
  2. Step 2: Convert to fraction form
    5,154.85/7,734.30 = 3,075.85/x
  3. Step 3: Cross multiply
    5,154.85x = 7,734.30 × 3,075.85
  4. Step 4: Simplify right side
    5,154.85x = 23,789,546.66
  5. Step 5: Solve for x
    x = 23,789,546.66/5,154.85
  6. Step 6: Final answer
    x = 4,614.98

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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.