Home / 7,210.89-10,812.29-2,827.17

Finding the Fourth Proportional to 7,210.89, 10,812.29 and 2,827.17

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Solution

The fourth proportional to 7,210.89, 10,812.29 and 2,827.17 is: 4,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.89 : 10,812.29 = 2,827.17 : x
  2. Step 2: Convert to fraction form
    7,210.89/10,812.29 = 2,827.17/x
  3. Step 3: Cross multiply
    7,210.89x = 10,812.29 × 2,827.17
  4. Step 4: Simplify right side
    7,210.89x = 30,568,167.78
  5. Step 5: Solve for x
    x = 30,568,167.78/7,210.89
  6. Step 6: Final answer
    x = 4,239.17

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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.