Home / 3,615.23-4,989.58-2,620.14

Finding the Fourth Proportional to 3,615.23, 4,989.58 and 2,620.14

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Solution

The fourth proportional to 3,615.23, 4,989.58 and 2,620.14 is: 3,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.23 : 4,989.58 = 2,620.14 : x
  2. Step 2: Convert to fraction form
    3,615.23/4,989.58 = 2,620.14/x
  3. Step 3: Cross multiply
    3,615.23x = 4,989.58 × 2,620.14
  4. Step 4: Simplify right side
    3,615.23x = 13,073,391.59
  5. Step 5: Solve for x
    x = 13,073,391.59/3,615.23
  6. Step 6: Final answer
    x = 3,616.20

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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.