Home / 3,424.45-5,130.60-2,124.40

Finding the Fourth Proportional to 3,424.45, 5,130.60 and 2,124.40

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Solution

The fourth proportional to 3,424.45, 5,130.60 and 2,124.40 is: 3,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,424.45 : 5,130.60 = 2,124.40 : x
  2. Step 2: Convert to fraction form
    3,424.45/5,130.60 = 2,124.40/x
  3. Step 3: Cross multiply
    3,424.45x = 5,130.60 × 2,124.40
  4. Step 4: Simplify right side
    3,424.45x = 10,899,446.64
  5. Step 5: Solve for x
    x = 10,899,446.64/3,424.45
  6. Step 6: Final answer
    x = 3,182.83

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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.