Home / 2,389.45-3,299.03-1,760.69

Finding the Fourth Proportional to 2,389.45, 3,299.03 and 1,760.69

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Solution

The fourth proportional to 2,389.45, 3,299.03 and 1,760.69 is: 2,430.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.45 : 3,299.03 = 1,760.69 : x
  2. Step 2: Convert to fraction form
    2,389.45/3,299.03 = 1,760.69/x
  3. Step 3: Cross multiply
    2,389.45x = 3,299.03 × 1,760.69
  4. Step 4: Simplify right side
    2,389.45x = 5,808,556.62
  5. Step 5: Solve for x
    x = 5,808,556.62/2,389.45
  6. Step 6: Final answer
    x = 2,430.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.