Home / 4,428.56-6,111.99-2,861.21

Finding the Fourth Proportional to 4,428.56, 6,111.99 and 2,861.21

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Solution

The fourth proportional to 4,428.56, 6,111.99 and 2,861.21 is: 3,948.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.56 : 6,111.99 = 2,861.21 : x
  2. Step 2: Convert to fraction form
    4,428.56/6,111.99 = 2,861.21/x
  3. Step 3: Cross multiply
    4,428.56x = 6,111.99 × 2,861.21
  4. Step 4: Simplify right side
    4,428.56x = 17,487,656.35
  5. Step 5: Solve for x
    x = 17,487,656.35/4,428.56
  6. Step 6: Final answer
    x = 3,948.84

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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.