Home / 2,938.95-4,383.65-2,734.83

Finding the Fourth Proportional to 2,938.95, 4,383.65 and 2,734.83

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Solution

The fourth proportional to 2,938.95, 4,383.65 and 2,734.83 is: 4,079.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.95 : 4,383.65 = 2,734.83 : x
  2. Step 2: Convert to fraction form
    2,938.95/4,383.65 = 2,734.83/x
  3. Step 3: Cross multiply
    2,938.95x = 4,383.65 × 2,734.83
  4. Step 4: Simplify right side
    2,938.95x = 11,988,544.37
  5. Step 5: Solve for x
    x = 11,988,544.37/2,938.95
  6. Step 6: Final answer
    x = 4,079.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.