Home / 4,129.40-6,195.06-1,207.76

Finding the Fourth Proportional to 4,129.40, 6,195.06 and 1,207.76

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Solution

The fourth proportional to 4,129.40, 6,195.06 and 1,207.76 is: 1,811.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,129.40 : 6,195.06 = 1,207.76 : x
  2. Step 2: Convert to fraction form
    4,129.40/6,195.06 = 1,207.76/x
  3. Step 3: Cross multiply
    4,129.40x = 6,195.06 × 1,207.76
  4. Step 4: Simplify right side
    4,129.40x = 7,482,145.67
  5. Step 5: Solve for x
    x = 7,482,145.67/4,129.40
  6. Step 6: Final answer
    x = 1,811.92

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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.