Home / 2,007.45-3,011.18-620.66

Finding the Fourth Proportional to 2,007.45, 3,011.18 and 620.66

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Solution

The fourth proportional to 2,007.45, 3,011.18 and 620.66 is: 930.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.45 : 3,011.18 = 620.66 : x
  2. Step 2: Convert to fraction form
    2,007.45/3,011.18 = 620.66/x
  3. Step 3: Cross multiply
    2,007.45x = 3,011.18 × 620.66
  4. Step 4: Simplify right side
    2,007.45x = 1,868,923.40
  5. Step 5: Solve for x
    x = 1,868,923.40/2,007.45
  6. Step 6: Final answer
    x = 930.99

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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.