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Finding the Fourth Proportional to 5,797.60, 8,000.40 and 3,702.40

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Solution

The fourth proportional to 5,797.60, 8,000.40 and 3,702.40 is: 5,109.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,797.60 : 8,000.40 = 3,702.40 : x
  2. Step 2: Convert to fraction form
    5,797.60/8,000.40 = 3,702.40/x
  3. Step 3: Cross multiply
    5,797.60x = 8,000.40 × 3,702.40
  4. Step 4: Simplify right side
    5,797.60x = 29,620,680.96
  5. Step 5: Solve for x
    x = 29,620,680.96/5,797.60
  6. Step 6: Final answer
    x = 5,109.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.