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Finding the Fourth Proportional to 7,098.72, 10,648.08 and 1,904.64

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Solution

The fourth proportional to 7,098.72, 10,648.08 and 1,904.64 is: 2,856.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.72 : 10,648.08 = 1,904.64 : x
  2. Step 2: Convert to fraction form
    7,098.72/10,648.08 = 1,904.64/x
  3. Step 3: Cross multiply
    7,098.72x = 10,648.08 × 1,904.64
  4. Step 4: Simplify right side
    7,098.72x = 20,280,759.09
  5. Step 5: Solve for x
    x = 20,280,759.09/7,098.72
  6. Step 6: Final answer
    x = 2,856.96

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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.