Home / 5,814.39-8,722.40-2,115.93

Finding the Fourth Proportional to 5,814.39, 8,722.40 and 2,115.93

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Solution

The fourth proportional to 5,814.39, 8,722.40 and 2,115.93 is: 3,174.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.39 : 8,722.40 = 2,115.93 : x
  2. Step 2: Convert to fraction form
    5,814.39/8,722.40 = 2,115.93/x
  3. Step 3: Cross multiply
    5,814.39x = 8,722.40 × 2,115.93
  4. Step 4: Simplify right side
    5,814.39x = 18,455,977.25
  5. Step 5: Solve for x
    x = 18,455,977.25/5,814.39
  6. Step 6: Final answer
    x = 3,174.19

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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.