Home / 4,189.15-6,280.47-2,431.45

Finding the Fourth Proportional to 4,189.15, 6,280.47 and 2,431.45

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Solution

The fourth proportional to 4,189.15, 6,280.47 and 2,431.45 is: 3,645.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.15 : 6,280.47 = 2,431.45 : x
  2. Step 2: Convert to fraction form
    4,189.15/6,280.47 = 2,431.45/x
  3. Step 3: Cross multiply
    4,189.15x = 6,280.47 × 2,431.45
  4. Step 4: Simplify right side
    4,189.15x = 15,270,648.78
  5. Step 5: Solve for x
    x = 15,270,648.78/4,189.15
  6. Step 6: Final answer
    x = 3,645.29

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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.