Home / 3,087.72-4,260.60-2,041.20

Finding the Fourth Proportional to 3,087.72, 4,260.60 and 2,041.20

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Solution

The fourth proportional to 3,087.72, 4,260.60 and 2,041.20 is: 2,816.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.72 : 4,260.60 = 2,041.20 : x
  2. Step 2: Convert to fraction form
    3,087.72/4,260.60 = 2,041.20/x
  3. Step 3: Cross multiply
    3,087.72x = 4,260.60 × 2,041.20
  4. Step 4: Simplify right side
    3,087.72x = 8,696,736.72
  5. Step 5: Solve for x
    x = 8,696,736.72/3,087.72
  6. Step 6: Final answer
    x = 2,816.56

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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.