Home / 3,615.59-5,420.04-1,274.31

Finding the Fourth Proportional to 3,615.59, 5,420.04 and 1,274.31

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Solution

The fourth proportional to 3,615.59, 5,420.04 and 1,274.31 is: 1,910.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.59 : 5,420.04 = 1,274.31 : x
  2. Step 2: Convert to fraction form
    3,615.59/5,420.04 = 1,274.31/x
  3. Step 3: Cross multiply
    3,615.59x = 5,420.04 × 1,274.31
  4. Step 4: Simplify right side
    3,615.59x = 6,906,811.17
  5. Step 5: Solve for x
    x = 6,906,811.17/3,615.59
  6. Step 6: Final answer
    x = 1,910.29

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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.