Home / 7,380.78-10,185.23-4,023.54

Finding the Fourth Proportional to 7,380.78, 10,185.23 and 4,023.54

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Solution

The fourth proportional to 7,380.78, 10,185.23 and 4,023.54 is: 5,552.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.78 : 10,185.23 = 4,023.54 : x
  2. Step 2: Convert to fraction form
    7,380.78/10,185.23 = 4,023.54/x
  3. Step 3: Cross multiply
    7,380.78x = 10,185.23 × 4,023.54
  4. Step 4: Simplify right side
    7,380.78x = 40,980,639.45
  5. Step 5: Solve for x
    x = 40,980,639.45/7,380.78
  6. Step 6: Final answer
    x = 5,552.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.