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Finding the Fourth Proportional to 6,483.70, 9,725.55 and 2,101.60

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Solution

The fourth proportional to 6,483.70, 9,725.55 and 2,101.60 is: 3,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,483.70 : 9,725.55 = 2,101.60 : x
  2. Step 2: Convert to fraction form
    6,483.70/9,725.55 = 2,101.60/x
  3. Step 3: Cross multiply
    6,483.70x = 9,725.55 × 2,101.60
  4. Step 4: Simplify right side
    6,483.70x = 20,439,215.88
  5. Step 5: Solve for x
    x = 20,439,215.88/6,483.70
  6. Step 6: Final answer
    x = 3,152.40

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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.