Home / 3,002.81-4,142.75-1,823.85

Finding the Fourth Proportional to 3,002.81, 4,142.75 and 1,823.85

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Solution

The fourth proportional to 3,002.81, 4,142.75 and 1,823.85 is: 2,516.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,002.81 : 4,142.75 = 1,823.85 : x
  2. Step 2: Convert to fraction form
    3,002.81/4,142.75 = 1,823.85/x
  3. Step 3: Cross multiply
    3,002.81x = 4,142.75 × 1,823.85
  4. Step 4: Simplify right side
    3,002.81x = 7,555,745.47
  5. Step 5: Solve for x
    x = 7,555,745.47/3,002.81
  6. Step 6: Final answer
    x = 2,516.23

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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.