Home / 2,015.79-3,020.45-1,665.87

Finding the Fourth Proportional to 2,015.79, 3,020.45 and 1,665.87

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Solution

The fourth proportional to 2,015.79, 3,020.45 and 1,665.87 is: 2,496.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.79 : 3,020.45 = 1,665.87 : x
  2. Step 2: Convert to fraction form
    2,015.79/3,020.45 = 1,665.87/x
  3. Step 3: Cross multiply
    2,015.79x = 3,020.45 × 1,665.87
  4. Step 4: Simplify right side
    2,015.79x = 5,031,668.71
  5. Step 5: Solve for x
    x = 5,031,668.71/2,015.79
  6. Step 6: Final answer
    x = 2,496.13

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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.