Home / 3,321.85-4,979.28-1,240.93

Finding the Fourth Proportional to 3,321.85, 4,979.28 and 1,240.93

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Solution

The fourth proportional to 3,321.85, 4,979.28 and 1,240.93 is: 1,860.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.85 : 4,979.28 = 1,240.93 : x
  2. Step 2: Convert to fraction form
    3,321.85/4,979.28 = 1,240.93/x
  3. Step 3: Cross multiply
    3,321.85x = 4,979.28 × 1,240.93
  4. Step 4: Simplify right side
    3,321.85x = 6,178,937.93
  5. Step 5: Solve for x
    x = 6,178,937.93/3,321.85
  6. Step 6: Final answer
    x = 1,860.09

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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.