Home / 3,065.15-4,230.80-2,003.08

Finding the Fourth Proportional to 3,065.15, 4,230.80 and 2,003.08

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Solution

The fourth proportional to 3,065.15, 4,230.80 and 2,003.08 is: 2,764.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.15 : 4,230.80 = 2,003.08 : x
  2. Step 2: Convert to fraction form
    3,065.15/4,230.80 = 2,003.08/x
  3. Step 3: Cross multiply
    3,065.15x = 4,230.80 × 2,003.08
  4. Step 4: Simplify right side
    3,065.15x = 8,474,599.69
  5. Step 5: Solve for x
    x = 8,474,599.69/3,065.15
  6. Step 6: Final answer
    x = 2,764.82

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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.