Home / 2,008.16-3,011.12-621.12

Finding the Fourth Proportional to 2,008.16, 3,011.12 and 621.12

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Solution

The fourth proportional to 2,008.16, 3,011.12 and 621.12 is: 931.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.16 : 3,011.12 = 621.12 : x
  2. Step 2: Convert to fraction form
    2,008.16/3,011.12 = 621.12/x
  3. Step 3: Cross multiply
    2,008.16x = 3,011.12 × 621.12
  4. Step 4: Simplify right side
    2,008.16x = 1,870,266.85
  5. Step 5: Solve for x
    x = 1,870,266.85/2,008.16
  6. Step 6: Final answer
    x = 931.33

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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.