Home / 2,984.85-4,116.42-1,805.49

Finding the Fourth Proportional to 2,984.85, 4,116.42 and 1,805.49

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Solution

The fourth proportional to 2,984.85, 4,116.42 and 1,805.49 is: 2,489.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.85 : 4,116.42 = 1,805.49 : x
  2. Step 2: Convert to fraction form
    2,984.85/4,116.42 = 1,805.49/x
  3. Step 3: Cross multiply
    2,984.85x = 4,116.42 × 1,805.49
  4. Step 4: Simplify right side
    2,984.85x = 7,432,155.15
  5. Step 5: Solve for x
    x = 7,432,155.15/2,984.85
  6. Step 6: Final answer
    x = 2,489.96

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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.