Home / 4,143.60-5,718.09-2,280.60

Finding the Fourth Proportional to 4,143.60, 5,718.09 and 2,280.60

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Solution

The fourth proportional to 4,143.60, 5,718.09 and 2,280.60 is: 3,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.60 : 5,718.09 = 2,280.60 : x
  2. Step 2: Convert to fraction form
    4,143.60/5,718.09 = 2,280.60/x
  3. Step 3: Cross multiply
    4,143.60x = 5,718.09 × 2,280.60
  4. Step 4: Simplify right side
    4,143.60x = 13,040,676.05
  5. Step 5: Solve for x
    x = 13,040,676.05/4,143.60
  6. Step 6: Final answer
    x = 3,147.19

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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.