Home / 7,385.78-10,192.60-4,028.74

Finding the Fourth Proportional to 7,385.78, 10,192.60 and 4,028.74

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Solution

The fourth proportional to 7,385.78, 10,192.60 and 4,028.74 is: 5,559.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.78 : 10,192.60 = 4,028.74 : x
  2. Step 2: Convert to fraction form
    7,385.78/10,192.60 = 4,028.74/x
  3. Step 3: Cross multiply
    7,385.78x = 10,192.60 × 4,028.74
  4. Step 4: Simplify right side
    7,385.78x = 41,063,314.88
  5. Step 5: Solve for x
    x = 41,063,314.88/7,385.78
  6. Step 6: Final answer
    x = 5,559.78

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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.