Home / 3,458.40-4,771.68-2,061.12

Finding the Fourth Proportional to 3,458.40, 4,771.68 and 2,061.12

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Solution

The fourth proportional to 3,458.40, 4,771.68 and 2,061.12 is: 2,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.40 : 4,771.68 = 2,061.12 : x
  2. Step 2: Convert to fraction form
    3,458.40/4,771.68 = 2,061.12/x
  3. Step 3: Cross multiply
    3,458.40x = 4,771.68 × 2,061.12
  4. Step 4: Simplify right side
    3,458.40x = 9,835,005.08
  5. Step 5: Solve for x
    x = 9,835,005.08/3,458.40
  6. Step 6: Final answer
    x = 2,843.80

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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.