Home / 5,229.64-7,216.62-2,871.40

Finding the Fourth Proportional to 5,229.64, 7,216.62 and 2,871.40

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Solution

The fourth proportional to 5,229.64, 7,216.62 and 2,871.40 is: 3,962.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.64 : 7,216.62 = 2,871.40 : x
  2. Step 2: Convert to fraction form
    5,229.64/7,216.62 = 2,871.40/x
  3. Step 3: Cross multiply
    5,229.64x = 7,216.62 × 2,871.40
  4. Step 4: Simplify right side
    5,229.64x = 20,721,802.67
  5. Step 5: Solve for x
    x = 20,721,802.67/5,229.64
  6. Step 6: Final answer
    x = 3,962.38

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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.