Home / 4,180.79-6,269.73-1,218.42

Finding the Fourth Proportional to 4,180.79, 6,269.73 and 1,218.42

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Solution

The fourth proportional to 4,180.79, 6,269.73 and 1,218.42 is: 1,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,180.79 : 6,269.73 = 1,218.42 : x
  2. Step 2: Convert to fraction form
    4,180.79/6,269.73 = 1,218.42/x
  3. Step 3: Cross multiply
    4,180.79x = 6,269.73 × 1,218.42
  4. Step 4: Simplify right side
    4,180.79x = 7,639,145.65
  5. Step 5: Solve for x
    x = 7,639,145.65/4,180.79
  6. Step 6: Final answer
    x = 1,827.20

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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.