Home / 5,678.07-8,518.01-1,979.27

Finding the Fourth Proportional to 5,678.07, 8,518.01 and 1,979.27

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Solution

The fourth proportional to 5,678.07, 8,518.01 and 1,979.27 is: 2,969.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.07 : 8,518.01 = 1,979.27 : x
  2. Step 2: Convert to fraction form
    5,678.07/8,518.01 = 1,979.27/x
  3. Step 3: Cross multiply
    5,678.07x = 8,518.01 × 1,979.27
  4. Step 4: Simplify right side
    5,678.07x = 16,859,389.17
  5. Step 5: Solve for x
    x = 16,859,389.17/5,678.07
  6. Step 6: Final answer
    x = 2,969.21

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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.