Home / 3,078.04-4,247.04-2,132.38

Finding the Fourth Proportional to 3,078.04, 4,247.04 and 2,132.38

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Solution

The fourth proportional to 3,078.04, 4,247.04 and 2,132.38 is: 2,942.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.04 : 4,247.04 = 2,132.38 : x
  2. Step 2: Convert to fraction form
    3,078.04/4,247.04 = 2,132.38/x
  3. Step 3: Cross multiply
    3,078.04x = 4,247.04 × 2,132.38
  4. Step 4: Simplify right side
    3,078.04x = 9,056,303.16
  5. Step 5: Solve for x
    x = 9,056,303.16/3,078.04
  6. Step 6: Final answer
    x = 2,942.23

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Half scale
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Double scale
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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.