Home / 3,121,125.48-4,305,428.64-2,540,972.70

Finding the Fourth Proportional to 3,121,125.48, 4,305,428.64 and 2,540,972.70

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Solution

The fourth proportional to 3,121,125.48, 4,305,428.64 and 2,540,972.70 is: 3,505,138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,125.48 : 4,305,428.64 = 2,540,972.70 : x
  2. Step 2: Convert to fraction form
    3,121,125.48/4,305,428.64 = 2,540,972.70/x
  3. Step 3: Cross multiply
    3,121,125.48x = 4,305,428.64 × 2,540,972.70
  4. Step 4: Simplify right side
    3,121,125.48x = 10,939,976,636,038.13
  5. Step 5: Solve for x
    x = 10,939,976,636,038.13/3,121,125.48
  6. Step 6: Final answer
    x = 3,505,138.36

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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.