Home / 3,020.16-4,166.90-1,902.21

Finding the Fourth Proportional to 3,020.16, 4,166.90 and 1,902.21

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Solution

The fourth proportional to 3,020.16, 4,166.90 and 1,902.21 is: 2,624.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.16 : 4,166.90 = 1,902.21 : x
  2. Step 2: Convert to fraction form
    3,020.16/4,166.90 = 1,902.21/x
  3. Step 3: Cross multiply
    3,020.16x = 4,166.90 × 1,902.21
  4. Step 4: Simplify right side
    3,020.16x = 7,926,309.34
  5. Step 5: Solve for x
    x = 7,926,309.34/3,020.16
  6. Step 6: Final answer
    x = 2,624.47

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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.