Home / 4,440.72-6,661.14-1,278.15

Finding the Fourth Proportional to 4,440.72, 6,661.14 and 1,278.15

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Solution

The fourth proportional to 4,440.72, 6,661.14 and 1,278.15 is: 1,917.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,440.72 : 6,661.14 = 1,278.15 : x
  2. Step 2: Convert to fraction form
    4,440.72/6,661.14 = 1,278.15/x
  3. Step 3: Cross multiply
    4,440.72x = 6,661.14 × 1,278.15
  4. Step 4: Simplify right side
    4,440.72x = 8,513,906.32
  5. Step 5: Solve for x
    x = 8,513,906.32/4,440.72
  6. Step 6: Final answer
    x = 1,917.23

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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.