Home / 4,105.16-6,155.28-1,640.36

Finding the Fourth Proportional to 4,105.16, 6,155.28 and 1,640.36

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Solution

The fourth proportional to 4,105.16, 6,155.28 and 1,640.36 is: 2,459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.16 : 6,155.28 = 1,640.36 : x
  2. Step 2: Convert to fraction form
    4,105.16/6,155.28 = 1,640.36/x
  3. Step 3: Cross multiply
    4,105.16x = 6,155.28 × 1,640.36
  4. Step 4: Simplify right side
    4,105.16x = 10,096,875.10
  5. Step 5: Solve for x
    x = 10,096,875.10/4,105.16
  6. Step 6: Final answer
    x = 2,459.56

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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.