Home / 2,691,408.10-4,037,112.15-2,655,978.70

Finding the Fourth Proportional to 2,691,408.10, 4,037,112.15 and 2,655,978.70

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Solution

The fourth proportional to 2,691,408.10, 4,037,112.15 and 2,655,978.70 is: 3,983,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691,408.10 : 4,037,112.15 = 2,655,978.70 : x
  2. Step 2: Convert to fraction form
    2,691,408.10/4,037,112.15 = 2,655,978.70/x
  3. Step 3: Cross multiply
    2,691,408.10x = 4,037,112.15 × 2,655,978.70
  4. Step 4: Simplify right side
    2,691,408.10x = 10,722,483,879,911.21
  5. Step 5: Solve for x
    x = 10,722,483,879,911.21/2,691,408.10
  6. Step 6: Final answer
    x = 3,983,968.05

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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.