Home / 7,112.53-10,665.28-2,180.98

Finding the Fourth Proportional to 7,112.53, 10,665.28 and 2,180.98

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Solution

The fourth proportional to 7,112.53, 10,665.28 and 2,180.98 is: 3,270.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.53 : 10,665.28 = 2,180.98 : x
  2. Step 2: Convert to fraction form
    7,112.53/10,665.28 = 2,180.98/x
  3. Step 3: Cross multiply
    7,112.53x = 10,665.28 × 2,180.98
  4. Step 4: Simplify right side
    7,112.53x = 23,260,730.26
  5. Step 5: Solve for x
    x = 23,260,730.26/7,112.53
  6. Step 6: Final answer
    x = 3,270.39

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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.