Home / 7,215.12-10,822.56-2,829.44

Finding the Fourth Proportional to 7,215.12, 10,822.56 and 2,829.44

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Solution

The fourth proportional to 7,215.12, 10,822.56 and 2,829.44 is: 4,244.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.12 : 10,822.56 = 2,829.44 : x
  2. Step 2: Convert to fraction form
    7,215.12/10,822.56 = 2,829.44/x
  3. Step 3: Cross multiply
    7,215.12x = 10,822.56 × 2,829.44
  4. Step 4: Simplify right side
    7,215.12x = 30,621,784.17
  5. Step 5: Solve for x
    x = 30,621,784.17/7,215.12
  6. Step 6: Final answer
    x = 4,244.11

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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.