Home / 3,620.68-4,991.70-2,877.10

Finding the Fourth Proportional to 3,620.68, 4,991.70 and 2,877.10

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Solution

The fourth proportional to 3,620.68, 4,991.70 and 2,877.10 is: 3,966.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.68 : 4,991.70 = 2,877.10 : x
  2. Step 2: Convert to fraction form
    3,620.68/4,991.70 = 2,877.10/x
  3. Step 3: Cross multiply
    3,620.68x = 4,991.70 × 2,877.10
  4. Step 4: Simplify right side
    3,620.68x = 14,361,620.07
  5. Step 5: Solve for x
    x = 14,361,620.07/3,620.68
  6. Step 6: Final answer
    x = 3,966.55

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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.