Home / 2,871.45-4,304.07-1,227.15

Finding the Fourth Proportional to 2,871.45, 4,304.07 and 1,227.15

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Solution

The fourth proportional to 2,871.45, 4,304.07 and 1,227.15 is: 1,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.45 : 4,304.07 = 1,227.15 : x
  2. Step 2: Convert to fraction form
    2,871.45/4,304.07 = 1,227.15/x
  3. Step 3: Cross multiply
    2,871.45x = 4,304.07 × 1,227.15
  4. Step 4: Simplify right side
    2,871.45x = 5,281,739.50
  5. Step 5: Solve for x
    x = 5,281,739.50/2,871.45
  6. Step 6: Final answer
    x = 1,839.40

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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.