Home / 3,620.32-4,994.40-2,275.36

Finding the Fourth Proportional to 3,620.32, 4,994.40 and 2,275.36

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Solution

The fourth proportional to 3,620.32, 4,994.40 and 2,275.36 is: 3,138.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.32 : 4,994.40 = 2,275.36 : x
  2. Step 2: Convert to fraction form
    3,620.32/4,994.40 = 2,275.36/x
  3. Step 3: Cross multiply
    3,620.32x = 4,994.40 × 2,275.36
  4. Step 4: Simplify right side
    3,620.32x = 11,364,057.98
  5. Step 5: Solve for x
    x = 11,364,057.98/3,620.32
  6. Step 6: Final answer
    x = 3,138.97

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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.