Home / 3,858,141.70-5,323,746.18-2,115,352.47

Finding the Fourth Proportional to 3,858,141.70, 5,323,746.18 and 2,115,352.47

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Solution

The fourth proportional to 3,858,141.70, 5,323,746.18 and 2,115,352.47 is: 2,918,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858,141.70 : 5,323,746.18 = 2,115,352.47 : x
  2. Step 2: Convert to fraction form
    3,858,141.70/5,323,746.18 = 2,115,352.47/x
  3. Step 3: Cross multiply
    3,858,141.70x = 5,323,746.18 × 2,115,352.47
  4. Step 4: Simplify right side
    3,858,141.70x = 11,261,599,631,516.06
  5. Step 5: Solve for x
    x = 11,261,599,631,516.06/3,858,141.70
  6. Step 6: Final answer
    x = 2,918,918.10

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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.