Home / 3,948.87-5,444.01-2,871.09

Finding the Fourth Proportional to 3,948.87, 5,444.01 and 2,871.09

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Solution

The fourth proportional to 3,948.87, 5,444.01 and 2,871.09 is: 3,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.87 : 5,444.01 = 2,871.09 : x
  2. Step 2: Convert to fraction form
    3,948.87/5,444.01 = 2,871.09/x
  3. Step 3: Cross multiply
    3,948.87x = 5,444.01 × 2,871.09
  4. Step 4: Simplify right side
    3,948.87x = 15,630,242.67
  5. Step 5: Solve for x
    x = 15,630,242.67/3,948.87
  6. Step 6: Final answer
    x = 3,958.16

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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.