Home / 2,859.87-4,289.91-1,011.17

Finding the Fourth Proportional to 2,859.87, 4,289.91 and 1,011.17

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Solution

The fourth proportional to 2,859.87, 4,289.91 and 1,011.17 is: 1,516.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.87 : 4,289.91 = 1,011.17 : x
  2. Step 2: Convert to fraction form
    2,859.87/4,289.91 = 1,011.17/x
  3. Step 3: Cross multiply
    2,859.87x = 4,289.91 × 1,011.17
  4. Step 4: Simplify right side
    2,859.87x = 4,337,806.85
  5. Step 5: Solve for x
    x = 4,337,806.85/2,859.87
  6. Step 6: Final answer
    x = 1,516.78

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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.