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Finding the Fourth Proportional to 3,599.96, 5,398.85 and 1,135.40

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Solution

The fourth proportional to 3,599.96, 5,398.85 and 1,135.40 is: 1,702.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,599.96 : 5,398.85 = 1,135.40 : x
  2. Step 2: Convert to fraction form
    3,599.96/5,398.85 = 1,135.40/x
  3. Step 3: Cross multiply
    3,599.96x = 5,398.85 × 1,135.40
  4. Step 4: Simplify right side
    3,599.96x = 6,129,830.13
  5. Step 5: Solve for x
    x = 6,129,830.13/3,599.96
  6. Step 6: Final answer
    x = 1,702.75

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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.