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Finding the Fourth Proportional to 5,689.10, 8,540.05 and 4,396.30

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Solution

The fourth proportional to 5,689.10, 8,540.05 and 4,396.30 is: 6,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.10 : 8,540.05 = 4,396.30 : x
  2. Step 2: Convert to fraction form
    5,689.10/8,540.05 = 4,396.30/x
  3. Step 3: Cross multiply
    5,689.10x = 8,540.05 × 4,396.30
  4. Step 4: Simplify right side
    5,689.10x = 37,544,621.82
  5. Step 5: Solve for x
    x = 37,544,621.82/5,689.10
  6. Step 6: Final answer
    x = 6,599.40

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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.