Home / 3,420.40-5,125.20-2,264.80

Finding the Fourth Proportional to 3,420.40, 5,125.20 and 2,264.80

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Solution

The fourth proportional to 3,420.40, 5,125.20 and 2,264.80 is: 3,393.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.40 : 5,125.20 = 2,264.80 : x
  2. Step 2: Convert to fraction form
    3,420.40/5,125.20 = 2,264.80/x
  3. Step 3: Cross multiply
    3,420.40x = 5,125.20 × 2,264.80
  4. Step 4: Simplify right side
    3,420.40x = 11,607,552.96
  5. Step 5: Solve for x
    x = 11,607,552.96/3,420.40
  6. Step 6: Final answer
    x = 3,393.62

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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.