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Finding the Fourth Proportional to 5,807.07, 8,008.81 and 3,918.35

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Solution

The fourth proportional to 5,807.07, 8,008.81 and 3,918.35 is: 5,403.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.07 : 8,008.81 = 3,918.35 : x
  2. Step 2: Convert to fraction form
    5,807.07/8,008.81 = 3,918.35/x
  3. Step 3: Cross multiply
    5,807.07x = 8,008.81 × 3,918.35
  4. Step 4: Simplify right side
    5,807.07x = 31,381,320.66
  5. Step 5: Solve for x
    x = 31,381,320.66/5,807.07
  6. Step 6: Final answer
    x = 5,403.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.