Home / 7,818.85-11,729.42-2,271.46

Finding the Fourth Proportional to 7,818.85, 11,729.42 and 2,271.46

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Solution

The fourth proportional to 7,818.85, 11,729.42 and 2,271.46 is: 3,407.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.85 : 11,729.42 = 2,271.46 : x
  2. Step 2: Convert to fraction form
    7,818.85/11,729.42 = 2,271.46/x
  3. Step 3: Cross multiply
    7,818.85x = 11,729.42 × 2,271.46
  4. Step 4: Simplify right side
    7,818.85x = 26,642,908.35
  5. Step 5: Solve for x
    x = 26,642,908.35/7,818.85
  6. Step 6: Final answer
    x = 3,407.52

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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.