Home / 4,128.87-6,193.86-1,207.14

Finding the Fourth Proportional to 4,128.87, 6,193.86 and 1,207.14

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Solution

The fourth proportional to 4,128.87, 6,193.86 and 1,207.14 is: 1,810.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.87 : 6,193.86 = 1,207.14 : x
  2. Step 2: Convert to fraction form
    4,128.87/6,193.86 = 1,207.14/x
  3. Step 3: Cross multiply
    4,128.87x = 6,193.86 × 1,207.14
  4. Step 4: Simplify right side
    4,128.87x = 7,476,856.16
  5. Step 5: Solve for x
    x = 7,476,856.16/4,128.87
  6. Step 6: Final answer
    x = 1,810.87

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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.