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Finding the Fourth Proportional to 6,429.80, 8,873.01 and 3,635.30

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Solution

The fourth proportional to 6,429.80, 8,873.01 and 3,635.30 is: 5,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429.80 : 8,873.01 = 3,635.30 : x
  2. Step 2: Convert to fraction form
    6,429.80/8,873.01 = 3,635.30/x
  3. Step 3: Cross multiply
    6,429.80x = 8,873.01 × 3,635.30
  4. Step 4: Simplify right side
    6,429.80x = 32,256,075.44
  5. Step 5: Solve for x
    x = 32,256,075.44/6,429.80
  6. Step 6: Final answer
    x = 5,016.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.