Home / 3,116.94-4,299.91-1,857.28

Finding the Fourth Proportional to 3,116.94, 4,299.91 and 1,857.28

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Solution

The fourth proportional to 3,116.94, 4,299.91 and 1,857.28 is: 2,562.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.94 : 4,299.91 = 1,857.28 : x
  2. Step 2: Convert to fraction form
    3,116.94/4,299.91 = 1,857.28/x
  3. Step 3: Cross multiply
    3,116.94x = 4,299.91 × 1,857.28
  4. Step 4: Simplify right side
    3,116.94x = 7,986,136.84
  5. Step 5: Solve for x
    x = 7,986,136.84/3,116.94
  6. Step 6: Final answer
    x = 2,562.17

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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.