Home / 3,924.20-5,415.68-2,595.60

Finding the Fourth Proportional to 3,924.20, 5,415.68 and 2,595.60

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Solution

The fourth proportional to 3,924.20, 5,415.68 and 2,595.60 is: 3,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.20 : 5,415.68 = 2,595.60 : x
  2. Step 2: Convert to fraction form
    3,924.20/5,415.68 = 2,595.60/x
  3. Step 3: Cross multiply
    3,924.20x = 5,415.68 × 2,595.60
  4. Step 4: Simplify right side
    3,924.20x = 14,056,939.01
  5. Step 5: Solve for x
    x = 14,056,939.01/3,924.20
  6. Step 6: Final answer
    x = 3,582.12

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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.