Home / 5,445.03-8,161.74-2,156.70

Finding the Fourth Proportional to 5,445.03, 8,161.74 and 2,156.70

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Solution

The fourth proportional to 5,445.03, 8,161.74 and 2,156.70 is: 3,232.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.03 : 8,161.74 = 2,156.70 : x
  2. Step 2: Convert to fraction form
    5,445.03/8,161.74 = 2,156.70/x
  3. Step 3: Cross multiply
    5,445.03x = 8,161.74 × 2,156.70
  4. Step 4: Simplify right side
    5,445.03x = 17,602,424.66
  5. Step 5: Solve for x
    x = 17,602,424.66/5,445.03
  6. Step 6: Final answer
    x = 3,232.75

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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.