Home / 3,876,079.15-5,348,989.29-2,157,605.61

Finding the Fourth Proportional to 3,876,079.15, 5,348,989.29 and 2,157,605.61

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Solution

The fourth proportional to 3,876,079.15, 5,348,989.29 and 2,157,605.61 is: 2,977,495.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876,079.15 : 5,348,989.29 = 2,157,605.61 : x
  2. Step 2: Convert to fraction form
    3,876,079.15/5,348,989.29 = 2,157,605.61/x
  3. Step 3: Cross multiply
    3,876,079.15x = 5,348,989.29 × 2,157,605.61
  4. Step 4: Simplify right side
    3,876,079.15x = 11,541,009,299,933.92
  5. Step 5: Solve for x
    x = 11,541,009,299,933.92/3,876,079.15
  6. Step 6: Final answer
    x = 2,977,495.78

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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.