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Finding the Fourth Proportional to 7,491.72, 11,238.93 and 2,560.17

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Solution

The fourth proportional to 7,491.72, 11,238.93 and 2,560.17 is: 3,840.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,491.72 : 11,238.93 = 2,560.17 : x
  2. Step 2: Convert to fraction form
    7,491.72/11,238.93 = 2,560.17/x
  3. Step 3: Cross multiply
    7,491.72x = 11,238.93 × 2,560.17
  4. Step 4: Simplify right side
    7,491.72x = 28,773,571.42
  5. Step 5: Solve for x
    x = 28,773,571.42/7,491.72
  6. Step 6: Final answer
    x = 3,840.72

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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.