Home / 3,622.87-4,999.22-2,878.63

Finding the Fourth Proportional to 3,622.87, 4,999.22 and 2,878.63

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Solution

The fourth proportional to 3,622.87, 4,999.22 and 2,878.63 is: 3,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.87 : 4,999.22 = 2,878.63 : x
  2. Step 2: Convert to fraction form
    3,622.87/4,999.22 = 2,878.63/x
  3. Step 3: Cross multiply
    3,622.87x = 4,999.22 × 2,878.63
  4. Step 4: Simplify right side
    3,622.87x = 14,390,890.28
  5. Step 5: Solve for x
    x = 14,390,890.28/3,622.87
  6. Step 6: Final answer
    x = 3,972.23

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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.