Home / 4,278.04-6,414.66-2,945.40

Finding the Fourth Proportional to 4,278.04, 6,414.66 and 2,945.40

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Solution

The fourth proportional to 4,278.04, 6,414.66 and 2,945.40 is: 4,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.04 : 6,414.66 = 2,945.40 : x
  2. Step 2: Convert to fraction form
    4,278.04/6,414.66 = 2,945.40/x
  3. Step 3: Cross multiply
    4,278.04x = 6,414.66 × 2,945.40
  4. Step 4: Simplify right side
    4,278.04x = 18,893,739.56
  5. Step 5: Solve for x
    x = 18,893,739.56/4,278.04
  6. Step 6: Final answer
    x = 4,416.45

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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.