Home / 3,887,999.70-5,831,999.55-2,687,385.30

Finding the Fourth Proportional to 3,887,999.70, 5,831,999.55 and 2,687,385.30

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Solution

The fourth proportional to 3,887,999.70, 5,831,999.55 and 2,687,385.30 is: 4,031,077.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887,999.70 : 5,831,999.55 = 2,687,385.30 : x
  2. Step 2: Convert to fraction form
    3,887,999.70/5,831,999.55 = 2,687,385.30/x
  3. Step 3: Cross multiply
    3,887,999.70x = 5,831,999.55 × 2,687,385.30
  4. Step 4: Simplify right side
    3,887,999.70x = 15,672,829,860,276.61
  5. Step 5: Solve for x
    x = 15,672,829,860,276.61/3,887,999.70
  6. Step 6: Final answer
    x = 4,031,077.95

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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.