Home / 7,283.10-10,920.60-3,122.40

Finding the Fourth Proportional to 7,283.10, 10,920.60 and 3,122.40

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Solution

The fourth proportional to 7,283.10, 10,920.60 and 3,122.40 is: 4,681.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,283.10 : 10,920.60 = 3,122.40 : x
  2. Step 2: Convert to fraction form
    7,283.10/10,920.60 = 3,122.40/x
  3. Step 3: Cross multiply
    7,283.10x = 10,920.60 × 3,122.40
  4. Step 4: Simplify right side
    7,283.10x = 34,098,481.44
  5. Step 5: Solve for x
    x = 34,098,481.44/7,283.10
  6. Step 6: Final answer
    x = 4,681.86

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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.