Home / 5,178.49-7,146.16-3,054.15

Finding the Fourth Proportional to 5,178.49, 7,146.16 and 3,054.15

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Solution

The fourth proportional to 5,178.49, 7,146.16 and 3,054.15 is: 4,214.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.49 : 7,146.16 = 3,054.15 : x
  2. Step 2: Convert to fraction form
    5,178.49/7,146.16 = 3,054.15/x
  3. Step 3: Cross multiply
    5,178.49x = 7,146.16 × 3,054.15
  4. Step 4: Simplify right side
    5,178.49x = 21,825,436.93
  5. Step 5: Solve for x
    x = 21,825,436.93/5,178.49
  6. Step 6: Final answer
    x = 4,214.64

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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.