Home / 4,105.68-6,159.60-1,913.28

Finding the Fourth Proportional to 4,105.68, 6,159.60 and 1,913.28

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Solution

The fourth proportional to 4,105.68, 6,159.60 and 1,913.28 is: 2,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.68 : 6,159.60 = 1,913.28 : x
  2. Step 2: Convert to fraction form
    4,105.68/6,159.60 = 1,913.28/x
  3. Step 3: Cross multiply
    4,105.68x = 6,159.60 × 1,913.28
  4. Step 4: Simplify right side
    4,105.68x = 11,785,039.49
  5. Step 5: Solve for x
    x = 11,785,039.49/4,105.68
  6. Step 6: Final answer
    x = 2,870.42

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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.