Home / 7,214.64-10,822.68-3,320.16

Finding the Fourth Proportional to 7,214.64, 10,822.68 and 3,320.16

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Solution

The fourth proportional to 7,214.64, 10,822.68 and 3,320.16 is: 4,980.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,214.64 : 10,822.68 = 3,320.16 : x
  2. Step 2: Convert to fraction form
    7,214.64/10,822.68 = 3,320.16/x
  3. Step 3: Cross multiply
    7,214.64x = 10,822.68 × 3,320.16
  4. Step 4: Simplify right side
    7,214.64x = 35,933,029.23
  5. Step 5: Solve for x
    x = 35,933,029.23/7,214.64
  6. Step 6: Final answer
    x = 4,980.57

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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.