Home / 5,447.18-8,165.88-1,982

Finding the Fourth Proportional to 5,447.18, 8,165.88 and 1,982

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Solution

The fourth proportional to 5,447.18, 8,165.88 and 1,982 is: 2,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.18 : 8,165.88 = 1,982 : x
  2. Step 2: Convert to fraction form
    5,447.18/8,165.88 = 1,982/x
  3. Step 3: Cross multiply
    5,447.18x = 8,165.88 × 1,982
  4. Step 4: Simplify right side
    5,447.18x = 16,184,774.16
  5. Step 5: Solve for x
    x = 16,184,774.16/5,447.18
  6. Step 6: Final answer
    x = 2,971.22

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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.