Home / 3,007.78-4,149.60-3,003.14

Finding the Fourth Proportional to 3,007.78, 4,149.60 and 3,003.14

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Solution

The fourth proportional to 3,007.78, 4,149.60 and 3,003.14 is: 4,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.78 : 4,149.60 = 3,003.14 : x
  2. Step 2: Convert to fraction form
    3,007.78/4,149.60 = 3,003.14/x
  3. Step 3: Cross multiply
    3,007.78x = 4,149.60 × 3,003.14
  4. Step 4: Simplify right side
    3,007.78x = 12,461,829.74
  5. Step 5: Solve for x
    x = 12,461,829.74/3,007.78
  6. Step 6: Final answer
    x = 4,143.20

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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.