Home / 3,425.12-5,137.44-1,116.32

Finding the Fourth Proportional to 3,425.12, 5,137.44 and 1,116.32

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Solution

The fourth proportional to 3,425.12, 5,137.44 and 1,116.32 is: 1,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.12 : 5,137.44 = 1,116.32 : x
  2. Step 2: Convert to fraction form
    3,425.12/5,137.44 = 1,116.32/x
  3. Step 3: Cross multiply
    3,425.12x = 5,137.44 × 1,116.32
  4. Step 4: Simplify right side
    3,425.12x = 5,735,027.02
  5. Step 5: Solve for x
    x = 5,735,027.02/3,425.12
  6. Step 6: Final answer
    x = 1,674.40

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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.