Home / 3,429.12-5,140.59-1,236.32

Finding the Fourth Proportional to 3,429.12, 5,140.59 and 1,236.32

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Solution

The fourth proportional to 3,429.12, 5,140.59 and 1,236.32 is: 1,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.12 : 5,140.59 = 1,236.32 : x
  2. Step 2: Convert to fraction form
    3,429.12/5,140.59 = 1,236.32/x
  3. Step 3: Cross multiply
    3,429.12x = 5,140.59 × 1,236.32
  4. Step 4: Simplify right side
    3,429.12x = 6,355,388.53
  5. Step 5: Solve for x
    x = 6,355,388.53/3,429.12
  6. Step 6: Final answer
    x = 1,853.36

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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.