Home / 5,181.38-7,150.98-3,085.50

Finding the Fourth Proportional to 5,181.38, 7,150.98 and 3,085.50

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Solution

The fourth proportional to 5,181.38, 7,150.98 and 3,085.50 is: 4,258.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.38 : 7,150.98 = 3,085.50 : x
  2. Step 2: Convert to fraction form
    5,181.38/7,150.98 = 3,085.50/x
  3. Step 3: Cross multiply
    5,181.38x = 7,150.98 × 3,085.50
  4. Step 4: Simplify right side
    5,181.38x = 22,064,348.79
  5. Step 5: Solve for x
    x = 22,064,348.79/5,181.38
  6. Step 6: Final answer
    x = 4,258.40

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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.