Home / 5,686.58-8,531.22-1,790.99

Finding the Fourth Proportional to 5,686.58, 8,531.22 and 1,790.99

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Solution

The fourth proportional to 5,686.58, 8,531.22 and 1,790.99 is: 2,686.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.58 : 8,531.22 = 1,790.99 : x
  2. Step 2: Convert to fraction form
    5,686.58/8,531.22 = 1,790.99/x
  3. Step 3: Cross multiply
    5,686.58x = 8,531.22 × 1,790.99
  4. Step 4: Simplify right side
    5,686.58x = 15,279,329.71
  5. Step 5: Solve for x
    x = 15,279,329.71/5,686.58
  6. Step 6: Final answer
    x = 2,686.91

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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.