Home / 3,345.40-4,616.49-2,164.42

Finding the Fourth Proportional to 3,345.40, 4,616.49 and 2,164.42

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Solution

The fourth proportional to 3,345.40, 4,616.49 and 2,164.42 is: 2,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.40 : 4,616.49 = 2,164.42 : x
  2. Step 2: Convert to fraction form
    3,345.40/4,616.49 = 2,164.42/x
  3. Step 3: Cross multiply
    3,345.40x = 4,616.49 × 2,164.42
  4. Step 4: Simplify right side
    3,345.40x = 9,992,023.29
  5. Step 5: Solve for x
    x = 9,992,023.29/3,345.40
  6. Step 6: Final answer
    x = 2,986.79

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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.