Home / 2,642.85-3,648.92-2,362.19

Finding the Fourth Proportional to 2,642.85, 3,648.92 and 2,362.19

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Solution

The fourth proportional to 2,642.85, 3,648.92 and 2,362.19 is: 3,261.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.85 : 3,648.92 = 2,362.19 : x
  2. Step 2: Convert to fraction form
    2,642.85/3,648.92 = 2,362.19/x
  3. Step 3: Cross multiply
    2,642.85x = 3,648.92 × 2,362.19
  4. Step 4: Simplify right side
    2,642.85x = 8,619,412.28
  5. Step 5: Solve for x
    x = 8,619,412.28/2,642.85
  6. Step 6: Final answer
    x = 3,261.41

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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.