Home / 5,510.31-8,261.79-1,811.25

Finding the Fourth Proportional to 5,510.31, 8,261.79 and 1,811.25

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Solution

The fourth proportional to 5,510.31, 8,261.79 and 1,811.25 is: 2,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,510.31 : 8,261.79 = 1,811.25 : x
  2. Step 2: Convert to fraction form
    5,510.31/8,261.79 = 1,811.25/x
  3. Step 3: Cross multiply
    5,510.31x = 8,261.79 × 1,811.25
  4. Step 4: Simplify right side
    5,510.31x = 14,964,167.14
  5. Step 5: Solve for x
    x = 14,964,167.14/5,510.31
  6. Step 6: Final answer
    x = 2,715.67

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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.