Home / 5,228.44-7,215.69-2,871.01

Finding the Fourth Proportional to 5,228.44, 7,215.69 and 2,871.01

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Solution

The fourth proportional to 5,228.44, 7,215.69 and 2,871.01 is: 3,962.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.44 : 7,215.69 = 2,871.01 : x
  2. Step 2: Convert to fraction form
    5,228.44/7,215.69 = 2,871.01/x
  3. Step 3: Cross multiply
    5,228.44x = 7,215.69 × 2,871.01
  4. Step 4: Simplify right side
    5,228.44x = 20,716,318.15
  5. Step 5: Solve for x
    x = 20,716,318.15/5,228.44
  6. Step 6: Final answer
    x = 3,962.24

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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.