Home / 3,913.11-5,868.99-2,157.53

Finding the Fourth Proportional to 3,913.11, 5,868.99 and 2,157.53

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Solution

The fourth proportional to 3,913.11, 5,868.99 and 2,157.53 is: 3,235.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.11 : 5,868.99 = 2,157.53 : x
  2. Step 2: Convert to fraction form
    3,913.11/5,868.99 = 2,157.53/x
  3. Step 3: Cross multiply
    3,913.11x = 5,868.99 × 2,157.53
  4. Step 4: Simplify right side
    3,913.11x = 12,662,492.65
  5. Step 5: Solve for x
    x = 12,662,492.65/3,913.11
  6. Step 6: Final answer
    x = 3,235.92

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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.