Home / 2,548.36-3,515.80-1,603.72

Finding the Fourth Proportional to 2,548.36, 3,515.80 and 1,603.72

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Solution

The fourth proportional to 2,548.36, 3,515.80 and 1,603.72 is: 2,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,548.36 : 3,515.80 = 1,603.72 : x
  2. Step 2: Convert to fraction form
    2,548.36/3,515.80 = 1,603.72/x
  3. Step 3: Cross multiply
    2,548.36x = 3,515.80 × 1,603.72
  4. Step 4: Simplify right side
    2,548.36x = 5,638,358.78
  5. Step 5: Solve for x
    x = 5,638,358.78/2,548.36
  6. Step 6: Final answer
    x = 2,212.54

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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.