Home / 3,321.40-4,985.70-2,594.20

Finding the Fourth Proportional to 3,321.40, 4,985.70 and 2,594.20

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Solution

The fourth proportional to 3,321.40, 4,985.70 and 2,594.20 is: 3,894.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.40 : 4,985.70 = 2,594.20 : x
  2. Step 2: Convert to fraction form
    3,321.40/4,985.70 = 2,594.20/x
  3. Step 3: Cross multiply
    3,321.40x = 4,985.70 × 2,594.20
  4. Step 4: Simplify right side
    3,321.40x = 12,933,902.94
  5. Step 5: Solve for x
    x = 12,933,902.94/3,321.40
  6. Step 6: Final answer
    x = 3,894.11

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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.