Home / 5,760.46-8,640.55-2,986.21

Finding the Fourth Proportional to 5,760.46, 8,640.55 and 2,986.21

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Solution

The fourth proportional to 5,760.46, 8,640.55 and 2,986.21 is: 4,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760.46 : 8,640.55 = 2,986.21 : x
  2. Step 2: Convert to fraction form
    5,760.46/8,640.55 = 2,986.21/x
  3. Step 3: Cross multiply
    5,760.46x = 8,640.55 × 2,986.21
  4. Step 4: Simplify right side
    5,760.46x = 25,802,496.82
  5. Step 5: Solve for x
    x = 25,802,496.82/5,760.46
  6. Step 6: Final answer
    x = 4,479.24

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1.5x scale

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.