Home / 4,859.12-7,288.18-2,085.28

Finding the Fourth Proportional to 4,859.12, 7,288.18 and 2,085.28

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Solution

The fourth proportional to 4,859.12, 7,288.18 and 2,085.28 is: 3,127.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,859.12 : 7,288.18 = 2,085.28 : x
  2. Step 2: Convert to fraction form
    4,859.12/7,288.18 = 2,085.28/x
  3. Step 3: Cross multiply
    4,859.12x = 7,288.18 × 2,085.28
  4. Step 4: Simplify right side
    4,859.12x = 15,197,895.99
  5. Step 5: Solve for x
    x = 15,197,895.99/4,859.12
  6. Step 6: Final answer
    x = 3,127.71

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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.