Home / 4,130.66-6,196.18-1,319.79

Finding the Fourth Proportional to 4,130.66, 6,196.18 and 1,319.79

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Solution

The fourth proportional to 4,130.66, 6,196.18 and 1,319.79 is: 1,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,130.66 : 6,196.18 = 1,319.79 : x
  2. Step 2: Convert to fraction form
    4,130.66/6,196.18 = 1,319.79/x
  3. Step 3: Cross multiply
    4,130.66x = 6,196.18 × 1,319.79
  4. Step 4: Simplify right side
    4,130.66x = 8,177,656.40
  5. Step 5: Solve for x
    x = 8,177,656.40/4,130.66
  6. Step 6: Final answer
    x = 1,979.75

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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.