Home / 7,208.60-10,812.76-2,829.12

Finding the Fourth Proportional to 7,208.60, 10,812.76 and 2,829.12

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Solution

The fourth proportional to 7,208.60, 10,812.76 and 2,829.12 is: 4,243.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,208.60 : 10,812.76 = 2,829.12 : x
  2. Step 2: Convert to fraction form
    7,208.60/10,812.76 = 2,829.12/x
  3. Step 3: Cross multiply
    7,208.60x = 10,812.76 × 2,829.12
  4. Step 4: Simplify right side
    7,208.60x = 30,590,595.57
  5. Step 5: Solve for x
    x = 30,590,595.57/7,208.60
  6. Step 6: Final answer
    x = 4,243.63

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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.