Home / 2,642.13-3,942.54-2,409.26

Finding the Fourth Proportional to 2,642.13, 3,942.54 and 2,409.26

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Solution

The fourth proportional to 2,642.13, 3,942.54 and 2,409.26 is: 3,595.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.13 : 3,942.54 = 2,409.26 : x
  2. Step 2: Convert to fraction form
    2,642.13/3,942.54 = 2,409.26/x
  3. Step 3: Cross multiply
    2,642.13x = 3,942.54 × 2,409.26
  4. Step 4: Simplify right side
    2,642.13x = 9,498,584.21
  5. Step 5: Solve for x
    x = 9,498,584.21/2,642.13
  6. Step 6: Final answer
    x = 3,595.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.