Home / 4,128.75-6,193.11-1,207.08

Finding the Fourth Proportional to 4,128.75, 6,193.11 and 1,207.08

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Solution

The fourth proportional to 4,128.75, 6,193.11 and 1,207.08 is: 1,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.75 : 6,193.11 = 1,207.08 : x
  2. Step 2: Convert to fraction form
    4,128.75/6,193.11 = 1,207.08/x
  3. Step 3: Cross multiply
    4,128.75x = 6,193.11 × 1,207.08
  4. Step 4: Simplify right side
    4,128.75x = 7,475,579.22
  5. Step 5: Solve for x
    x = 7,475,579.22/4,128.75
  6. Step 6: Final answer
    x = 1,810.62

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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.