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Finding the Fourth Proportional to 7,086.72, 10,630.08 and 1,892.58

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Solution

The fourth proportional to 7,086.72, 10,630.08 and 1,892.58 is: 2,838.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.72 : 10,630.08 = 1,892.58 : x
  2. Step 2: Convert to fraction form
    7,086.72/10,630.08 = 1,892.58/x
  3. Step 3: Cross multiply
    7,086.72x = 10,630.08 × 1,892.58
  4. Step 4: Simplify right side
    7,086.72x = 20,118,276.81
  5. Step 5: Solve for x
    x = 20,118,276.81/7,086.72
  6. Step 6: Final answer
    x = 2,838.87

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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.