Home / 3,930.06-5,422.71-2,603.01

Finding the Fourth Proportional to 3,930.06, 5,422.71 and 2,603.01

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Solution

The fourth proportional to 3,930.06, 5,422.71 and 2,603.01 is: 3,591.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.06 : 5,422.71 = 2,603.01 : x
  2. Step 2: Convert to fraction form
    3,930.06/5,422.71 = 2,603.01/x
  3. Step 3: Cross multiply
    3,930.06x = 5,422.71 × 2,603.01
  4. Step 4: Simplify right side
    3,930.06x = 14,115,368.36
  5. Step 5: Solve for x
    x = 14,115,368.36/3,930.06
  6. Step 6: Final answer
    x = 3,591.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.