Home / 3,108.36-4,663.40-1,028.72

Finding the Fourth Proportional to 3,108.36, 4,663.40 and 1,028.72

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Solution

The fourth proportional to 3,108.36, 4,663.40 and 1,028.72 is: 1,543.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.36 : 4,663.40 = 1,028.72 : x
  2. Step 2: Convert to fraction form
    3,108.36/4,663.40 = 1,028.72/x
  3. Step 3: Cross multiply
    3,108.36x = 4,663.40 × 1,028.72
  4. Step 4: Simplify right side
    3,108.36x = 4,797,332.85
  5. Step 5: Solve for x
    x = 4,797,332.85/3,108.36
  6. Step 6: Final answer
    x = 1,543.36

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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.