Home / 3,420.06-5,129.10-1,227.60

Finding the Fourth Proportional to 3,420.06, 5,129.10 and 1,227.60

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Solution

The fourth proportional to 3,420.06, 5,129.10 and 1,227.60 is: 1,841.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.06 : 5,129.10 = 1,227.60 : x
  2. Step 2: Convert to fraction form
    3,420.06/5,129.10 = 1,227.60/x
  3. Step 3: Cross multiply
    3,420.06x = 5,129.10 × 1,227.60
  4. Step 4: Simplify right side
    3,420.06x = 6,296,483.16
  5. Step 5: Solve for x
    x = 6,296,483.16/3,420.06
  6. Step 6: Final answer
    x = 1,841.04

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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.