Home / 3,921.48-5,410.59-2,326.80

Finding the Fourth Proportional to 3,921.48, 5,410.59 and 2,326.80

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Solution

The fourth proportional to 3,921.48, 5,410.59 and 2,326.80 is: 3,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.48 : 5,410.59 = 2,326.80 : x
  2. Step 2: Convert to fraction form
    3,921.48/5,410.59 = 2,326.80/x
  3. Step 3: Cross multiply
    3,921.48x = 5,410.59 × 2,326.80
  4. Step 4: Simplify right side
    3,921.48x = 12,589,349.18
  5. Step 5: Solve for x
    x = 12,589,349.18/3,921.48
  6. Step 6: Final answer
    x = 3,210.36

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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.