Home / 3,241.28-4,864.80-2,590.40

Finding the Fourth Proportional to 3,241.28, 4,864.80 and 2,590.40

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Solution

The fourth proportional to 3,241.28, 4,864.80 and 2,590.40 is: 3,887.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,241.28 : 4,864.80 = 2,590.40 : x
  2. Step 2: Convert to fraction form
    3,241.28/4,864.80 = 2,590.40/x
  3. Step 3: Cross multiply
    3,241.28x = 4,864.80 × 2,590.40
  4. Step 4: Simplify right side
    3,241.28x = 12,601,777.92
  5. Step 5: Solve for x
    x = 12,601,777.92/3,241.28
  6. Step 6: Final answer
    x = 3,887.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.