Home / 3,622.59-4,999.19-2,130.30

Finding the Fourth Proportional to 3,622.59, 4,999.19 and 2,130.30

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Solution

The fourth proportional to 3,622.59, 4,999.19 and 2,130.30 is: 2,939.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.59 : 4,999.19 = 2,130.30 : x
  2. Step 2: Convert to fraction form
    3,622.59/4,999.19 = 2,130.30/x
  3. Step 3: Cross multiply
    3,622.59x = 4,999.19 × 2,130.30
  4. Step 4: Simplify right side
    3,622.59x = 10,649,763.81
  5. Step 5: Solve for x
    x = 10,649,763.81/3,622.59
  6. Step 6: Final answer
    x = 2,939.82

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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.