Home / 5,814.36-8,719.50-1,917.72

Finding the Fourth Proportional to 5,814.36, 8,719.50 and 1,917.72

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Solution

The fourth proportional to 5,814.36, 8,719.50 and 1,917.72 is: 2,875.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.36 : 8,719.50 = 1,917.72 : x
  2. Step 2: Convert to fraction form
    5,814.36/8,719.50 = 1,917.72/x
  3. Step 3: Cross multiply
    5,814.36x = 8,719.50 × 1,917.72
  4. Step 4: Simplify right side
    5,814.36x = 16,721,559.54
  5. Step 5: Solve for x
    x = 16,721,559.54/5,814.36
  6. Step 6: Final answer
    x = 2,875.91

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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.