Home / 3,421.83-5,132.14-1,230.28

Finding the Fourth Proportional to 3,421.83, 5,132.14 and 1,230.28

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Solution

The fourth proportional to 3,421.83, 5,132.14 and 1,230.28 is: 1,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.83 : 5,132.14 = 1,230.28 : x
  2. Step 2: Convert to fraction form
    3,421.83/5,132.14 = 1,230.28/x
  3. Step 3: Cross multiply
    3,421.83x = 5,132.14 × 1,230.28
  4. Step 4: Simplify right side
    3,421.83x = 6,313,969.20
  5. Step 5: Solve for x
    x = 6,313,969.20/3,421.83
  6. Step 6: Final answer
    x = 1,845.20

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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.