Home / 4,138.40-6,207.60-1,216.74

Finding the Fourth Proportional to 4,138.40, 6,207.60 and 1,216.74

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Solution

The fourth proportional to 4,138.40, 6,207.60 and 1,216.74 is: 1,825.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.40 : 6,207.60 = 1,216.74 : x
  2. Step 2: Convert to fraction form
    4,138.40/6,207.60 = 1,216.74/x
  3. Step 3: Cross multiply
    4,138.40x = 6,207.60 × 1,216.74
  4. Step 4: Simplify right side
    4,138.40x = 7,553,035.22
  5. Step 5: Solve for x
    x = 7,553,035.22/4,138.40
  6. Step 6: Final answer
    x = 1,825.11

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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.