Home / 3,905.25-5,858.91-1,440.10

Finding the Fourth Proportional to 3,905.25, 5,858.91 and 1,440.10

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Solution

The fourth proportional to 3,905.25, 5,858.91 and 1,440.10 is: 2,160.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.25 : 5,858.91 = 1,440.10 : x
  2. Step 2: Convert to fraction form
    3,905.25/5,858.91 = 1,440.10/x
  3. Step 3: Cross multiply
    3,905.25x = 5,858.91 × 1,440.10
  4. Step 4: Simplify right side
    3,905.25x = 8,437,386.61
  5. Step 5: Solve for x
    x = 8,437,386.61/3,905.25
  6. Step 6: Final answer
    x = 2,160.52

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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.