Home / 5,685.94-8,529.21-1,790.65

Finding the Fourth Proportional to 5,685.94, 8,529.21 and 1,790.65

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Solution

The fourth proportional to 5,685.94, 8,529.21 and 1,790.65 is: 2,686.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.94 : 8,529.21 = 1,790.65 : x
  2. Step 2: Convert to fraction form
    5,685.94/8,529.21 = 1,790.65/x
  3. Step 3: Cross multiply
    5,685.94x = 8,529.21 × 1,790.65
  4. Step 4: Simplify right side
    5,685.94x = 15,272,808.56
  5. Step 5: Solve for x
    x = 15,272,808.56/5,685.94
  6. Step 6: Final answer
    x = 2,686.07

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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.