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Finding the Fourth Proportional to 6,893.70, 10,340.55 and 3,607.80

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Solution

The fourth proportional to 6,893.70, 10,340.55 and 3,607.80 is: 5,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.70 : 10,340.55 = 3,607.80 : x
  2. Step 2: Convert to fraction form
    6,893.70/10,340.55 = 3,607.80/x
  3. Step 3: Cross multiply
    6,893.70x = 10,340.55 × 3,607.80
  4. Step 4: Simplify right side
    6,893.70x = 37,306,636.29
  5. Step 5: Solve for x
    x = 37,306,636.29/6,893.70
  6. Step 6: Final answer
    x = 5,411.70

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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.