Home / 3,420.25-5,125.61-2,586.63

Finding the Fourth Proportional to 3,420.25, 5,125.61 and 2,586.63

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Solution

The fourth proportional to 3,420.25, 5,125.61 and 2,586.63 is: 3,876.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.25 : 5,125.61 = 2,586.63 : x
  2. Step 2: Convert to fraction form
    3,420.25/5,125.61 = 2,586.63/x
  3. Step 3: Cross multiply
    3,420.25x = 5,125.61 × 2,586.63
  4. Step 4: Simplify right side
    3,420.25x = 13,258,056.59
  5. Step 5: Solve for x
    x = 13,258,056.59/3,420.25
  6. Step 6: Final answer
    x = 3,876.34

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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.