Home / 3,608.60-4,980.30-2,037.20

Finding the Fourth Proportional to 3,608.60, 4,980.30 and 2,037.20

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Solution

The fourth proportional to 3,608.60, 4,980.30 and 2,037.20 is: 2,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.60 : 4,980.30 = 2,037.20 : x
  2. Step 2: Convert to fraction form
    3,608.60/4,980.30 = 2,037.20/x
  3. Step 3: Cross multiply
    3,608.60x = 4,980.30 × 2,037.20
  4. Step 4: Simplify right side
    3,608.60x = 10,145,867.16
  5. Step 5: Solve for x
    x = 10,145,867.16/3,608.60
  6. Step 6: Final answer
    x = 2,811.58

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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.