Home / 3,622.40-4,999.16-2,029.20

Finding the Fourth Proportional to 3,622.40, 4,999.16 and 2,029.20

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Solution

The fourth proportional to 3,622.40, 4,999.16 and 2,029.20 is: 2,800.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.40 : 4,999.16 = 2,029.20 : x
  2. Step 2: Convert to fraction form
    3,622.40/4,999.16 = 2,029.20/x
  3. Step 3: Cross multiply
    3,622.40x = 4,999.16 × 2,029.20
  4. Step 4: Simplify right side
    3,622.40x = 10,144,295.47
  5. Step 5: Solve for x
    x = 10,144,295.47/3,622.40
  6. Step 6: Final answer
    x = 2,800.43

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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.