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Finding the Fourth Proportional to 3,672.15, 5,509.08 and 1,075.29

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Solution

The fourth proportional to 3,672.15, 5,509.08 and 1,075.29 is: 1,613.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.15 : 5,509.08 = 1,075.29 : x
  2. Step 2: Convert to fraction form
    3,672.15/5,509.08 = 1,075.29/x
  3. Step 3: Cross multiply
    3,672.15x = 5,509.08 × 1,075.29
  4. Step 4: Simplify right side
    3,672.15x = 5,923,858.63
  5. Step 5: Solve for x
    x = 5,923,858.63/3,672.15
  6. Step 6: Final answer
    x = 1,613.19

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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.