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Finding the Fourth Proportional to 5,590, 8,387.03 and 1,892.35

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Solution

The fourth proportional to 5,590, 8,387.03 and 1,892.35 is: 2,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590 : 8,387.03 = 1,892.35 : x
  2. Step 2: Convert to fraction form
    5,590/8,387.03 = 1,892.35/x
  3. Step 3: Cross multiply
    5,590x = 8,387.03 × 1,892.35
  4. Step 4: Simplify right side
    5,590x = 15,871,196.22
  5. Step 5: Solve for x
    x = 15,871,196.22/5,590
  6. Step 6: Final answer
    x = 2,839.21

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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.