Home / 5,149.20-7,106.88-3,054.48

Finding the Fourth Proportional to 5,149.20, 7,106.88 and 3,054.48

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Solution

The fourth proportional to 5,149.20, 7,106.88 and 3,054.48 is: 4,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.20 : 7,106.88 = 3,054.48 : x
  2. Step 2: Convert to fraction form
    5,149.20/7,106.88 = 3,054.48/x
  3. Step 3: Cross multiply
    5,149.20x = 7,106.88 × 3,054.48
  4. Step 4: Simplify right side
    5,149.20x = 21,707,822.82
  5. Step 5: Solve for x
    x = 21,707,822.82/5,149.20
  6. Step 6: Final answer
    x = 4,215.77

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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.