Home / 5,913.40-8,862.21-2,211.88

Finding the Fourth Proportional to 5,913.40, 8,862.21 and 2,211.88

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Solution

The fourth proportional to 5,913.40, 8,862.21 and 2,211.88 is: 3,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.40 : 8,862.21 = 2,211.88 : x
  2. Step 2: Convert to fraction form
    5,913.40/8,862.21 = 2,211.88/x
  3. Step 3: Cross multiply
    5,913.40x = 8,862.21 × 2,211.88
  4. Step 4: Simplify right side
    5,913.40x = 19,602,145.05
  5. Step 5: Solve for x
    x = 19,602,145.05/5,913.40
  6. Step 6: Final answer
    x = 3,314.87

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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.