Home / 5,229.41-7,214.81-2,989.70

Finding the Fourth Proportional to 5,229.41, 7,214.81 and 2,989.70

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Solution

The fourth proportional to 5,229.41, 7,214.81 and 2,989.70 is: 4,124.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.41 : 7,214.81 = 2,989.70 : x
  2. Step 2: Convert to fraction form
    5,229.41/7,214.81 = 2,989.70/x
  3. Step 3: Cross multiply
    5,229.41x = 7,214.81 × 2,989.70
  4. Step 4: Simplify right side
    5,229.41x = 21,570,084.47
  5. Step 5: Solve for x
    x = 21,570,084.47/5,229.41
  6. Step 6: Final answer
    x = 4,124.77

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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.