Home / 2,147.23-3,220.81-848.71

Finding the Fourth Proportional to 2,147.23, 3,220.81 and 848.71

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Solution

The fourth proportional to 2,147.23, 3,220.81 and 848.71 is: 1,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.23 : 3,220.81 = 848.71 : x
  2. Step 2: Convert to fraction form
    2,147.23/3,220.81 = 848.71/x
  3. Step 3: Cross multiply
    2,147.23x = 3,220.81 × 848.71
  4. Step 4: Simplify right side
    2,147.23x = 2,733,533.66
  5. Step 5: Solve for x
    x = 2,733,533.66/2,147.23
  6. Step 6: Final answer
    x = 1,273.05

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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.