Home / 3,871.04-5,341.72-2,277.74

Finding the Fourth Proportional to 3,871.04, 5,341.72 and 2,277.74

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Solution

The fourth proportional to 3,871.04, 5,341.72 and 2,277.74 is: 3,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.04 : 5,341.72 = 2,277.74 : x
  2. Step 2: Convert to fraction form
    3,871.04/5,341.72 = 2,277.74/x
  3. Step 3: Cross multiply
    3,871.04x = 5,341.72 × 2,277.74
  4. Step 4: Simplify right side
    3,871.04x = 12,167,049.31
  5. Step 5: Solve for x
    x = 12,167,049.31/3,871.04
  6. Step 6: Final answer
    x = 3,143.10

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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.