Home / 5,111.96-7,054.49-2,988.95

Finding the Fourth Proportional to 5,111.96, 7,054.49 and 2,988.95

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Solution

The fourth proportional to 5,111.96, 7,054.49 and 2,988.95 is: 4,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.96 : 7,054.49 = 2,988.95 : x
  2. Step 2: Convert to fraction form
    5,111.96/7,054.49 = 2,988.95/x
  3. Step 3: Cross multiply
    5,111.96x = 7,054.49 × 2,988.95
  4. Step 4: Simplify right side
    5,111.96x = 21,085,490.09
  5. Step 5: Solve for x
    x = 21,085,490.09/5,111.96
  6. Step 6: Final answer
    x = 4,124.74

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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.