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Finding the Fourth Proportional to 3,075.44, 4,613.32 and 766.96

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Solution

The fourth proportional to 3,075.44, 4,613.32 and 766.96 is: 1,150.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.44 : 4,613.32 = 766.96 : x
  2. Step 2: Convert to fraction form
    3,075.44/4,613.32 = 766.96/x
  3. Step 3: Cross multiply
    3,075.44x = 4,613.32 × 766.96
  4. Step 4: Simplify right side
    3,075.44x = 3,538,231.91
  5. Step 5: Solve for x
    x = 3,538,231.91/3,075.44
  6. Step 6: Final answer
    x = 1,150.48

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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.