Home / 7,215.60-10,823.28-2,021.52

Finding the Fourth Proportional to 7,215.60, 10,823.28 and 2,021.52

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Solution

The fourth proportional to 7,215.60, 10,823.28 and 2,021.52 is: 3,032.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.60 : 10,823.28 = 2,021.52 : x
  2. Step 2: Convert to fraction form
    7,215.60/10,823.28 = 2,021.52/x
  3. Step 3: Cross multiply
    7,215.60x = 10,823.28 × 2,021.52
  4. Step 4: Simplify right side
    7,215.60x = 21,879,476.99
  5. Step 5: Solve for x
    x = 21,879,476.99/7,215.60
  6. Step 6: Final answer
    x = 3,032.25

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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.