Home / 7,205.18-10,802.46-2,820.38

Finding the Fourth Proportional to 7,205.18, 10,802.46 and 2,820.38

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Solution

The fourth proportional to 7,205.18, 10,802.46 and 2,820.38 is: 4,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,205.18 : 10,802.46 = 2,820.38 : x
  2. Step 2: Convert to fraction form
    7,205.18/10,802.46 = 2,820.38/x
  3. Step 3: Cross multiply
    7,205.18x = 10,802.46 × 2,820.38
  4. Step 4: Simplify right side
    7,205.18x = 30,467,042.13
  5. Step 5: Solve for x
    x = 30,467,042.13/7,205.18
  6. Step 6: Final answer
    x = 4,228.49

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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.