Home / 7,211.90-10,818.12-2,017.64

Finding the Fourth Proportional to 7,211.90, 10,818.12 and 2,017.64

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Solution

The fourth proportional to 7,211.90, 10,818.12 and 2,017.64 is: 3,026.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211.90 : 10,818.12 = 2,017.64 : x
  2. Step 2: Convert to fraction form
    7,211.90/10,818.12 = 2,017.64/x
  3. Step 3: Cross multiply
    7,211.90x = 10,818.12 × 2,017.64
  4. Step 4: Simplify right side
    7,211.90x = 21,827,071.64
  5. Step 5: Solve for x
    x = 21,827,071.64/7,211.90
  6. Step 6: Final answer
    x = 3,026.54

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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.