Home / 6,115.61-9,171.09-2,603.40

Finding the Fourth Proportional to 6,115.61, 9,171.09 and 2,603.40

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Solution

The fourth proportional to 6,115.61, 9,171.09 and 2,603.40 is: 3,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.61 : 9,171.09 = 2,603.40 : x
  2. Step 2: Convert to fraction form
    6,115.61/9,171.09 = 2,603.40/x
  3. Step 3: Cross multiply
    6,115.61x = 9,171.09 × 2,603.40
  4. Step 4: Simplify right side
    6,115.61x = 23,876,038.63
  5. Step 5: Solve for x
    x = 23,876,038.63/6,115.61
  6. Step 6: Final answer
    x = 3,904.11

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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.