Home / 5,814.18-8,721.81-1,918.62

Finding the Fourth Proportional to 5,814.18, 8,721.81 and 1,918.62

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Solution

The fourth proportional to 5,814.18, 8,721.81 and 1,918.62 is: 2,878.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,814.18 : 8,721.81 = 1,918.62 : x
  2. Step 2: Convert to fraction form
    5,814.18/8,721.81 = 1,918.62/x
  3. Step 3: Cross multiply
    5,814.18x = 8,721.81 × 1,918.62
  4. Step 4: Simplify right side
    5,814.18x = 16,733,839.10
  5. Step 5: Solve for x
    x = 16,733,839.10/5,814.18
  6. Step 6: Final answer
    x = 2,878.11

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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.