Home / 3,087.99-4,258.58-2,864.43

Finding the Fourth Proportional to 3,087.99, 4,258.58 and 2,864.43

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Solution

The fourth proportional to 3,087.99, 4,258.58 and 2,864.43 is: 3,950.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.99 : 4,258.58 = 2,864.43 : x
  2. Step 2: Convert to fraction form
    3,087.99/4,258.58 = 2,864.43/x
  3. Step 3: Cross multiply
    3,087.99x = 4,258.58 × 2,864.43
  4. Step 4: Simplify right side
    3,087.99x = 12,198,389.99
  5. Step 5: Solve for x
    x = 12,198,389.99/3,087.99
  6. Step 6: Final answer
    x = 3,950.27

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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.