Home / 9,137.25-13,705.95-2,897.13

Finding the Fourth Proportional to 9,137.25, 13,705.95 and 2,897.13

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Solution

The fourth proportional to 9,137.25, 13,705.95 and 2,897.13 is: 4,345.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.25 : 13,705.95 = 2,897.13 : x
  2. Step 2: Convert to fraction form
    9,137.25/13,705.95 = 2,897.13/x
  3. Step 3: Cross multiply
    9,137.25x = 13,705.95 × 2,897.13
  4. Step 4: Simplify right side
    9,137.25x = 39,707,918.92
  5. Step 5: Solve for x
    x = 39,707,918.92/9,137.25
  6. Step 6: Final answer
    x = 4,345.72

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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.