Home / 6,122.90-9,182.95-2,999.78

Finding the Fourth Proportional to 6,122.90, 9,182.95 and 2,999.78

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Solution

The fourth proportional to 6,122.90, 9,182.95 and 2,999.78 is: 4,498.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,122.90 : 9,182.95 = 2,999.78 : x
  2. Step 2: Convert to fraction form
    6,122.90/9,182.95 = 2,999.78/x
  3. Step 3: Cross multiply
    6,122.90x = 9,182.95 × 2,999.78
  4. Step 4: Simplify right side
    6,122.90x = 27,546,829.75
  5. Step 5: Solve for x
    x = 27,546,829.75/6,122.90
  6. Step 6: Final answer
    x = 4,498.98

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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.