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Finding the Fourth Proportional to 5,600.96, 8,398.50 and 2,091.20

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Solution

The fourth proportional to 5,600.96, 8,398.50 and 2,091.20 is: 3,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,600.96 : 8,398.50 = 2,091.20 : x
  2. Step 2: Convert to fraction form
    5,600.96/8,398.50 = 2,091.20/x
  3. Step 3: Cross multiply
    5,600.96x = 8,398.50 × 2,091.20
  4. Step 4: Simplify right side
    5,600.96x = 17,562,943.20
  5. Step 5: Solve for x
    x = 17,562,943.20/5,600.96
  6. Step 6: Final answer
    x = 3,135.70

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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.