Home / 3,034.60-4,191.78-2,919.40

Finding the Fourth Proportional to 3,034.60, 4,191.78 and 2,919.40

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Solution

The fourth proportional to 3,034.60, 4,191.78 and 2,919.40 is: 4,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,034.60 : 4,191.78 = 2,919.40 : x
  2. Step 2: Convert to fraction form
    3,034.60/4,191.78 = 2,919.40/x
  3. Step 3: Cross multiply
    3,034.60x = 4,191.78 × 2,919.40
  4. Step 4: Simplify right side
    3,034.60x = 12,237,482.53
  5. Step 5: Solve for x
    x = 12,237,482.53/3,034.60
  6. Step 6: Final answer
    x = 4,032.65

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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.