Home / 2,938.14-4,407.18-1,206.78

Finding the Fourth Proportional to 2,938.14, 4,407.18 and 1,206.78

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Solution

The fourth proportional to 2,938.14, 4,407.18 and 1,206.78 is: 1,810.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.14 : 4,407.18 = 1,206.78 : x
  2. Step 2: Convert to fraction form
    2,938.14/4,407.18 = 1,206.78/x
  3. Step 3: Cross multiply
    2,938.14x = 4,407.18 × 1,206.78
  4. Step 4: Simplify right side
    2,938.14x = 5,318,496.68
  5. Step 5: Solve for x
    x = 5,318,496.68/2,938.14
  6. Step 6: Final answer
    x = 1,810.16

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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.