Home / 3,718.16-5,575.48-2,158.64

Finding the Fourth Proportional to 3,718.16, 5,575.48 and 2,158.64

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Solution

The fourth proportional to 3,718.16, 5,575.48 and 2,158.64 is: 3,236.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.16 : 5,575.48 = 2,158.64 : x
  2. Step 2: Convert to fraction form
    3,718.16/5,575.48 = 2,158.64/x
  3. Step 3: Cross multiply
    3,718.16x = 5,575.48 × 2,158.64
  4. Step 4: Simplify right side
    3,718.16x = 12,035,462.69
  5. Step 5: Solve for x
    x = 12,035,462.69/3,718.16
  6. Step 6: Final answer
    x = 3,236.94

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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.