Home / 3,909,397.86-5,870,546.01-2,638,172.52

Finding the Fourth Proportional to 3,909,397.86, 5,870,546.01 and 2,638,172.52

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Solution

The fourth proportional to 3,909,397.86, 5,870,546.01 and 2,638,172.52 is: 3,961,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909,397.86 : 5,870,546.01 = 2,638,172.52 : x
  2. Step 2: Convert to fraction form
    3,909,397.86/5,870,546.01 = 2,638,172.52/x
  3. Step 3: Cross multiply
    3,909,397.86x = 5,870,546.01 × 2,638,172.52
  4. Step 4: Simplify right side
    3,909,397.86x = 15,487,513,160,977.64
  5. Step 5: Solve for x
    x = 15,487,513,160,977.64/3,909,397.86
  6. Step 6: Final answer
    x = 3,961,610.90

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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.