Home / 3,905.16-5,857.72-1,440.06

Finding the Fourth Proportional to 3,905.16, 5,857.72 and 1,440.06

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Solution

The fourth proportional to 3,905.16, 5,857.72 and 1,440.06 is: 2,160.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.16 : 5,857.72 = 1,440.06 : x
  2. Step 2: Convert to fraction form
    3,905.16/5,857.72 = 1,440.06/x
  3. Step 3: Cross multiply
    3,905.16x = 5,857.72 × 1,440.06
  4. Step 4: Simplify right side
    3,905.16x = 8,435,468.26
  5. Step 5: Solve for x
    x = 8,435,468.26/3,905.16
  6. Step 6: Final answer
    x = 2,160.08

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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.