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Finding the Fourth Proportional to 7,277.72, 10,916.58 and 2,659.64

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Solution

The fourth proportional to 7,277.72, 10,916.58 and 2,659.64 is: 3,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,277.72 : 10,916.58 = 2,659.64 : x
  2. Step 2: Convert to fraction form
    7,277.72/10,916.58 = 2,659.64/x
  3. Step 3: Cross multiply
    7,277.72x = 10,916.58 × 2,659.64
  4. Step 4: Simplify right side
    7,277.72x = 29,034,172.83
  5. Step 5: Solve for x
    x = 29,034,172.83/7,277.72
  6. Step 6: Final answer
    x = 3,989.46

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1.5x scale

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.