Home / 2,548.78-3,515.32-2,195.28

Finding the Fourth Proportional to 2,548.78, 3,515.32 and 2,195.28

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Solution

The fourth proportional to 2,548.78, 3,515.32 and 2,195.28 is: 3,027.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.78 : 3,515.32 = 2,195.28 : x
  2. Step 2: Convert to fraction form
    2,548.78/3,515.32 = 2,195.28/x
  3. Step 3: Cross multiply
    2,548.78x = 3,515.32 × 2,195.28
  4. Step 4: Simplify right side
    2,548.78x = 7,717,111.69
  5. Step 5: Solve for x
    x = 7,717,111.69/2,548.78
  6. Step 6: Final answer
    x = 3,027.77

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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.