Home / 7,283.69-10,929.20-3,122.55

Finding the Fourth Proportional to 7,283.69, 10,929.20 and 3,122.55

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Solution

The fourth proportional to 7,283.69, 10,929.20 and 3,122.55 is: 4,685.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,283.69 : 10,929.20 = 3,122.55 : x
  2. Step 2: Convert to fraction form
    7,283.69/10,929.20 = 3,122.55/x
  3. Step 3: Cross multiply
    7,283.69x = 10,929.20 × 3,122.55
  4. Step 4: Simplify right side
    7,283.69x = 34,126,957.85
  5. Step 5: Solve for x
    x = 34,126,957.85/7,283.69
  6. Step 6: Final answer
    x = 4,685.39

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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.