Home / 7,818.53-11,728.56-2,271.92

Finding the Fourth Proportional to 7,818.53, 11,728.56 and 2,271.92

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Solution

The fourth proportional to 7,818.53, 11,728.56 and 2,271.92 is: 3,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.53 : 11,728.56 = 2,271.92 : x
  2. Step 2: Convert to fraction form
    7,818.53/11,728.56 = 2,271.92/x
  3. Step 3: Cross multiply
    7,818.53x = 11,728.56 × 2,271.92
  4. Step 4: Simplify right side
    7,818.53x = 26,646,307.88
  5. Step 5: Solve for x
    x = 26,646,307.88/7,818.53
  6. Step 6: Final answer
    x = 3,408.10

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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.