Home / 3,119.30-4,681.68-1,659.48

Finding the Fourth Proportional to 3,119.30, 4,681.68 and 1,659.48

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Solution

The fourth proportional to 3,119.30, 4,681.68 and 1,659.48 is: 2,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.30 : 4,681.68 = 1,659.48 : x
  2. Step 2: Convert to fraction form
    3,119.30/4,681.68 = 1,659.48/x
  3. Step 3: Cross multiply
    3,119.30x = 4,681.68 × 1,659.48
  4. Step 4: Simplify right side
    3,119.30x = 7,769,154.33
  5. Step 5: Solve for x
    x = 7,769,154.33/3,119.30
  6. Step 6: Final answer
    x = 2,490.67

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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.