Home / 3,975.42-5,488.60-2,718.56

Finding the Fourth Proportional to 3,975.42, 5,488.60 and 2,718.56

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Solution

The fourth proportional to 3,975.42, 5,488.60 and 2,718.56 is: 3,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.42 : 5,488.60 = 2,718.56 : x
  2. Step 2: Convert to fraction form
    3,975.42/5,488.60 = 2,718.56/x
  3. Step 3: Cross multiply
    3,975.42x = 5,488.60 × 2,718.56
  4. Step 4: Simplify right side
    3,975.42x = 14,921,088.42
  5. Step 5: Solve for x
    x = 14,921,088.42/3,975.42
  6. Step 6: Final answer
    x = 3,753.34

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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.