Home / 5,228.10-7,214.49-2,869.80

Finding the Fourth Proportional to 5,228.10, 7,214.49 and 2,869.80

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Solution

The fourth proportional to 5,228.10, 7,214.49 and 2,869.80 is: 3,960.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.10 : 7,214.49 = 2,869.80 : x
  2. Step 2: Convert to fraction form
    5,228.10/7,214.49 = 2,869.80/x
  3. Step 3: Cross multiply
    5,228.10x = 7,214.49 × 2,869.80
  4. Step 4: Simplify right side
    5,228.10x = 20,704,143.40
  5. Step 5: Solve for x
    x = 20,704,143.40/5,228.10
  6. Step 6: Final answer
    x = 3,960.17

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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.