Home / 2,408.86-3,332.10-2,015.20

Finding the Fourth Proportional to 2,408.86, 3,332.10 and 2,015.20

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Solution

The fourth proportional to 2,408.86, 3,332.10 and 2,015.20 is: 2,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,408.86 : 3,332.10 = 2,015.20 : x
  2. Step 2: Convert to fraction form
    2,408.86/3,332.10 = 2,015.20/x
  3. Step 3: Cross multiply
    2,408.86x = 3,332.10 × 2,015.20
  4. Step 4: Simplify right side
    2,408.86x = 6,714,847.92
  5. Step 5: Solve for x
    x = 6,714,847.92/2,408.86
  6. Step 6: Final answer
    x = 2,787.56

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1.5x scale

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.