Home / 3,102.50-4,268.89-2,994.77

Finding the Fourth Proportional to 3,102.50, 4,268.89 and 2,994.77

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Solution

The fourth proportional to 3,102.50, 4,268.89 and 2,994.77 is: 4,120.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.50 : 4,268.89 = 2,994.77 : x
  2. Step 2: Convert to fraction form
    3,102.50/4,268.89 = 2,994.77/x
  3. Step 3: Cross multiply
    3,102.50x = 4,268.89 × 2,994.77
  4. Step 4: Simplify right side
    3,102.50x = 12,784,343.71
  5. Step 5: Solve for x
    x = 12,784,343.71/3,102.50
  6. Step 6: Final answer
    x = 4,120.66

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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.