Home / 2,984.13-4,117.91-1,805.85

Finding the Fourth Proportional to 2,984.13, 4,117.91 and 1,805.85

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Solution

The fourth proportional to 2,984.13, 4,117.91 and 1,805.85 is: 2,491.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.13 : 4,117.91 = 1,805.85 : x
  2. Step 2: Convert to fraction form
    2,984.13/4,117.91 = 1,805.85/x
  3. Step 3: Cross multiply
    2,984.13x = 4,117.91 × 1,805.85
  4. Step 4: Simplify right side
    2,984.13x = 7,436,318.74
  5. Step 5: Solve for x
    x = 7,436,318.74/2,984.13
  6. Step 6: Final answer
    x = 2,491.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.