Home / 3,420.37-4,689.33-3,358.09

Finding the Fourth Proportional to 3,420.37, 4,689.33 and 3,358.09

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Solution

The fourth proportional to 3,420.37, 4,689.33 and 3,358.09 is: 4,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.37 : 4,689.33 = 3,358.09 : x
  2. Step 2: Convert to fraction form
    3,420.37/4,689.33 = 3,358.09/x
  3. Step 3: Cross multiply
    3,420.37x = 4,689.33 × 3,358.09
  4. Step 4: Simplify right side
    3,420.37x = 15,747,151.94
  5. Step 5: Solve for x
    x = 15,747,151.94/3,420.37
  6. Step 6: Final answer
    x = 4,603.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.