Home / 7,490.43-11,235.64-2,560.11

Finding the Fourth Proportional to 7,490.43, 11,235.64 and 2,560.11

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Solution

The fourth proportional to 7,490.43, 11,235.64 and 2,560.11 is: 3,840.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.43 : 11,235.64 = 2,560.11 : x
  2. Step 2: Convert to fraction form
    7,490.43/11,235.64 = 2,560.11/x
  3. Step 3: Cross multiply
    7,490.43x = 11,235.64 × 2,560.11
  4. Step 4: Simplify right side
    7,490.43x = 28,764,467.92
  5. Step 5: Solve for x
    x = 28,764,467.92/7,490.43
  6. Step 6: Final answer
    x = 3,840.16

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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.