Home / 2,984.98-4,119.33-1,805.86

Finding the Fourth Proportional to 2,984.98, 4,119.33 and 1,805.86

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Solution

The fourth proportional to 2,984.98, 4,119.33 and 1,805.86 is: 2,492.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.98 : 4,119.33 = 1,805.86 : x
  2. Step 2: Convert to fraction form
    2,984.98/4,119.33 = 1,805.86/x
  3. Step 3: Cross multiply
    2,984.98x = 4,119.33 × 1,805.86
  4. Step 4: Simplify right side
    2,984.98x = 7,438,933.27
  5. Step 5: Solve for x
    x = 7,438,933.27/2,984.98
  6. Step 6: Final answer
    x = 2,492.12

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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.