Home / 7,214.28-10,821.48-2,020.08

Finding the Fourth Proportional to 7,214.28, 10,821.48 and 2,020.08

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Solution

The fourth proportional to 7,214.28, 10,821.48 and 2,020.08 is: 3,030.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.28 : 10,821.48 = 2,020.08 : x
  2. Step 2: Convert to fraction form
    7,214.28/10,821.48 = 2,020.08/x
  3. Step 3: Cross multiply
    7,214.28x = 10,821.48 × 2,020.08
  4. Step 4: Simplify right side
    7,214.28x = 21,860,255.32
  5. Step 5: Solve for x
    x = 21,860,255.32/7,214.28
  6. Step 6: Final answer
    x = 3,030.14

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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.