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Finding the Fourth Proportional to 6,525.60, 9,788.40 and 1,908.60

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Solution

The fourth proportional to 6,525.60, 9,788.40 and 1,908.60 is: 2,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,525.60 : 9,788.40 = 1,908.60 : x
  2. Step 2: Convert to fraction form
    6,525.60/9,788.40 = 1,908.60/x
  3. Step 3: Cross multiply
    6,525.60x = 9,788.40 × 1,908.60
  4. Step 4: Simplify right side
    6,525.60x = 18,682,140.24
  5. Step 5: Solve for x
    x = 18,682,140.24/6,525.60
  6. Step 6: Final answer
    x = 2,862.90

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Double scale
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Similar ratio
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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.