Home / 2,988.50-4,125.29-1,993.41

Finding the Fourth Proportional to 2,988.50, 4,125.29 and 1,993.41

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Solution

The fourth proportional to 2,988.50, 4,125.29 and 1,993.41 is: 2,751.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.50 : 4,125.29 = 1,993.41 : x
  2. Step 2: Convert to fraction form
    2,988.50/4,125.29 = 1,993.41/x
  3. Step 3: Cross multiply
    2,988.50x = 4,125.29 × 1,993.41
  4. Step 4: Simplify right side
    2,988.50x = 8,223,384.37
  5. Step 5: Solve for x
    x = 8,223,384.37/2,988.50
  6. Step 6: Final answer
    x = 2,751.68

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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.