Home / 4,142.89-5,717.26-2,254.55

Finding the Fourth Proportional to 4,142.89, 5,717.26 and 2,254.55

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Solution

The fourth proportional to 4,142.89, 5,717.26 and 2,254.55 is: 3,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.89 : 5,717.26 = 2,254.55 : x
  2. Step 2: Convert to fraction form
    4,142.89/5,717.26 = 2,254.55/x
  3. Step 3: Cross multiply
    4,142.89x = 5,717.26 × 2,254.55
  4. Step 4: Simplify right side
    4,142.89x = 12,889,842.24
  5. Step 5: Solve for x
    x = 12,889,842.24/4,142.89
  6. Step 6: Final answer
    x = 3,111.32

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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.