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Finding the Fourth Proportional to 5,556.88, 8,335.16 and 1,396.88

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Solution

The fourth proportional to 5,556.88, 8,335.16 and 1,396.88 is: 2,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,556.88 : 8,335.16 = 1,396.88 : x
  2. Step 2: Convert to fraction form
    5,556.88/8,335.16 = 1,396.88/x
  3. Step 3: Cross multiply
    5,556.88x = 8,335.16 × 1,396.88
  4. Step 4: Simplify right side
    5,556.88x = 11,643,218.30
  5. Step 5: Solve for x
    x = 11,643,218.30/5,556.88
  6. Step 6: Final answer
    x = 2,095.28

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1.5x scale

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.