Home / 5,270.72-7,906.47-1,983.74

Finding the Fourth Proportional to 5,270.72, 7,906.47 and 1,983.74

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Solution

The fourth proportional to 5,270.72, 7,906.47 and 1,983.74 is: 2,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,270.72 : 7,906.47 = 1,983.74 : x
  2. Step 2: Convert to fraction form
    5,270.72/7,906.47 = 1,983.74/x
  3. Step 3: Cross multiply
    5,270.72x = 7,906.47 × 1,983.74
  4. Step 4: Simplify right side
    5,270.72x = 15,684,341.27
  5. Step 5: Solve for x
    x = 15,684,341.27/5,270.72
  6. Step 6: Final answer
    x = 2,975.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.