Home / 3,420.16-5,124.64-1,337.80

Finding the Fourth Proportional to 3,420.16, 5,124.64 and 1,337.80

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Solution

The fourth proportional to 3,420.16, 5,124.64 and 1,337.80 is: 2,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.16 : 5,124.64 = 1,337.80 : x
  2. Step 2: Convert to fraction form
    3,420.16/5,124.64 = 1,337.80/x
  3. Step 3: Cross multiply
    3,420.16x = 5,124.64 × 1,337.80
  4. Step 4: Simplify right side
    3,420.16x = 6,855,743.39
  5. Step 5: Solve for x
    x = 6,855,743.39/3,420.16
  6. Step 6: Final answer
    x = 2,004.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.