Home / 7,218.29-10,828.76-2,220.57

Finding the Fourth Proportional to 7,218.29, 10,828.76 and 2,220.57

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Solution

The fourth proportional to 7,218.29, 10,828.76 and 2,220.57 is: 3,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.29 : 10,828.76 = 2,220.57 : x
  2. Step 2: Convert to fraction form
    7,218.29/10,828.76 = 2,220.57/x
  3. Step 3: Cross multiply
    7,218.29x = 10,828.76 × 2,220.57
  4. Step 4: Simplify right side
    7,218.29x = 24,046,008.49
  5. Step 5: Solve for x
    x = 24,046,008.49/7,218.29
  6. Step 6: Final answer
    x = 3,331.26

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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.