Home / 5,609.51-8,415.91-1,660.87

Finding the Fourth Proportional to 5,609.51, 8,415.91 and 1,660.87

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Solution

The fourth proportional to 5,609.51, 8,415.91 and 1,660.87 is: 2,491.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,609.51 : 8,415.91 = 1,660.87 : x
  2. Step 2: Convert to fraction form
    5,609.51/8,415.91 = 1,660.87/x
  3. Step 3: Cross multiply
    5,609.51x = 8,415.91 × 1,660.87
  4. Step 4: Simplify right side
    5,609.51x = 13,977,738.81
  5. Step 5: Solve for x
    x = 13,977,738.81/5,609.51
  6. Step 6: Final answer
    x = 2,491.79

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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.