Home / 5,056.47-6,982.23-3,171.21

Finding the Fourth Proportional to 5,056.47, 6,982.23 and 3,171.21

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Solution

The fourth proportional to 5,056.47, 6,982.23 and 3,171.21 is: 4,378.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,056.47 : 6,982.23 = 3,171.21 : x
  2. Step 2: Convert to fraction form
    5,056.47/6,982.23 = 3,171.21/x
  3. Step 3: Cross multiply
    5,056.47x = 6,982.23 × 3,171.21
  4. Step 4: Simplify right side
    5,056.47x = 22,142,117.60
  5. Step 5: Solve for x
    x = 22,142,117.60/5,056.47
  6. Step 6: Final answer
    x = 4,378.97

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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.