Home / 7,222.18-10,829.10-2,837.20

Finding the Fourth Proportional to 7,222.18, 10,829.10 and 2,837.20

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Solution

The fourth proportional to 7,222.18, 10,829.10 and 2,837.20 is: 4,254.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,222.18 : 10,829.10 = 2,837.20 : x
  2. Step 2: Convert to fraction form
    7,222.18/10,829.10 = 2,837.20/x
  3. Step 3: Cross multiply
    7,222.18x = 10,829.10 × 2,837.20
  4. Step 4: Simplify right side
    7,222.18x = 30,724,322.52
  5. Step 5: Solve for x
    x = 30,724,322.52/7,222.18
  6. Step 6: Final answer
    x = 4,254.16

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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.