Home / 2,007.46-3,011.22-620.78

Finding the Fourth Proportional to 2,007.46, 3,011.22 and 620.78

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Solution

The fourth proportional to 2,007.46, 3,011.22 and 620.78 is: 931.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.46 : 3,011.22 = 620.78 : x
  2. Step 2: Convert to fraction form
    2,007.46/3,011.22 = 620.78/x
  3. Step 3: Cross multiply
    2,007.46x = 3,011.22 × 620.78
  4. Step 4: Simplify right side
    2,007.46x = 1,869,305.15
  5. Step 5: Solve for x
    x = 1,869,305.15/2,007.46
  6. Step 6: Final answer
    x = 931.18

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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.