Home / 2,147.14-3,218.80-848.30

Finding the Fourth Proportional to 2,147.14, 3,218.80 and 848.30

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Solution

The fourth proportional to 2,147.14, 3,218.80 and 848.30 is: 1,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.14 : 3,218.80 = 848.30 : x
  2. Step 2: Convert to fraction form
    2,147.14/3,218.80 = 848.30/x
  3. Step 3: Cross multiply
    2,147.14x = 3,218.80 × 848.30
  4. Step 4: Simplify right side
    2,147.14x = 2,730,508.04
  5. Step 5: Solve for x
    x = 2,730,508.04/2,147.14
  6. Step 6: Final answer
    x = 1,271.70

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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.