Home / 7,112.55-10,669.10-2,730.45

Finding the Fourth Proportional to 7,112.55, 10,669.10 and 2,730.45

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Solution

The fourth proportional to 7,112.55, 10,669.10 and 2,730.45 is: 4,095.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.55 : 10,669.10 = 2,730.45 : x
  2. Step 2: Convert to fraction form
    7,112.55/10,669.10 = 2,730.45/x
  3. Step 3: Cross multiply
    7,112.55x = 10,669.10 × 2,730.45
  4. Step 4: Simplify right side
    7,112.55x = 29,131,430.44
  5. Step 5: Solve for x
    x = 29,131,430.44/7,112.55
  6. Step 6: Final answer
    x = 4,095.78

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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.