Home / 2,622.39-3,621.09-1,742.12

Finding the Fourth Proportional to 2,622.39, 3,621.09 and 1,742.12

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Solution

The fourth proportional to 2,622.39, 3,621.09 and 1,742.12 is: 2,405.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,622.39 : 3,621.09 = 1,742.12 : x
  2. Step 2: Convert to fraction form
    2,622.39/3,621.09 = 1,742.12/x
  3. Step 3: Cross multiply
    2,622.39x = 3,621.09 × 1,742.12
  4. Step 4: Simplify right side
    2,622.39x = 6,308,385.89
  5. Step 5: Solve for x
    x = 6,308,385.89/2,622.39
  6. Step 6: Final answer
    x = 2,405.58

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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.