Home / 4,078.13-5,627.81-2,215.13

Finding the Fourth Proportional to 4,078.13, 5,627.81 and 2,215.13

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Solution

The fourth proportional to 4,078.13, 5,627.81 and 2,215.13 is: 3,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.13 : 5,627.81 = 2,215.13 : x
  2. Step 2: Convert to fraction form
    4,078.13/5,627.81 = 2,215.13/x
  3. Step 3: Cross multiply
    4,078.13x = 5,627.81 × 2,215.13
  4. Step 4: Simplify right side
    4,078.13x = 12,466,308.16
  5. Step 5: Solve for x
    x = 12,466,308.16/4,078.13
  6. Step 6: Final answer
    x = 3,056.87

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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.