Home / 2,511.36-3,767.04-1,278.72

Finding the Fourth Proportional to 2,511.36, 3,767.04 and 1,278.72

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Solution

The fourth proportional to 2,511.36, 3,767.04 and 1,278.72 is: 1,918.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.36 : 3,767.04 = 1,278.72 : x
  2. Step 2: Convert to fraction form
    2,511.36/3,767.04 = 1,278.72/x
  3. Step 3: Cross multiply
    2,511.36x = 3,767.04 × 1,278.72
  4. Step 4: Simplify right side
    2,511.36x = 4,816,989.39
  5. Step 5: Solve for x
    x = 4,816,989.39/2,511.36
  6. Step 6: Final answer
    x = 1,918.08

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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.