Home / 5,379.11-8,068.37-1,680.91

Finding the Fourth Proportional to 5,379.11, 8,068.37 and 1,680.91

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Solution

The fourth proportional to 5,379.11, 8,068.37 and 1,680.91 is: 2,521.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.11 : 8,068.37 = 1,680.91 : x
  2. Step 2: Convert to fraction form
    5,379.11/8,068.37 = 1,680.91/x
  3. Step 3: Cross multiply
    5,379.11x = 8,068.37 × 1,680.91
  4. Step 4: Simplify right side
    5,379.11x = 13,562,195.41
  5. Step 5: Solve for x
    x = 13,562,195.41/5,379.11
  6. Step 6: Final answer
    x = 2,521.27

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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.