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Finding the Fourth Proportional to 5,514.40, 8,264.40 and 4,895.20

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Solution

The fourth proportional to 5,514.40, 8,264.40 and 4,895.20 is: 7,336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,514.40 : 8,264.40 = 4,895.20 : x
  2. Step 2: Convert to fraction form
    5,514.40/8,264.40 = 4,895.20/x
  3. Step 3: Cross multiply
    5,514.40x = 8,264.40 × 4,895.20
  4. Step 4: Simplify right side
    5,514.40x = 40,455,890.88
  5. Step 5: Solve for x
    x = 40,455,890.88/5,514.40
  6. Step 6: Final answer
    x = 7,336.41

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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.