Home / 4,842.21-7,254.15-2,861.91

Finding the Fourth Proportional to 4,842.21, 7,254.15 and 2,861.91

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Solution

The fourth proportional to 4,842.21, 7,254.15 and 2,861.91 is: 4,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,842.21 : 7,254.15 = 2,861.91 : x
  2. Step 2: Convert to fraction form
    4,842.21/7,254.15 = 2,861.91/x
  3. Step 3: Cross multiply
    4,842.21x = 7,254.15 × 2,861.91
  4. Step 4: Simplify right side
    4,842.21x = 20,760,724.43
  5. Step 5: Solve for x
    x = 20,760,724.43/4,842.21
  6. Step 6: Final answer
    x = 4,287.45

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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.