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Finding the Fourth Proportional to 7,607.88, 11,409.64 and 2,927.56

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Solution

The fourth proportional to 7,607.88, 11,409.64 and 2,927.56 is: 4,390.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,607.88 : 11,409.64 = 2,927.56 : x
  2. Step 2: Convert to fraction form
    7,607.88/11,409.64 = 2,927.56/x
  3. Step 3: Cross multiply
    7,607.88x = 11,409.64 × 2,927.56
  4. Step 4: Simplify right side
    7,607.88x = 33,402,405.68
  5. Step 5: Solve for x
    x = 33,402,405.68/7,607.88
  6. Step 6: Final answer
    x = 4,390.50

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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.