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Finding the Fourth Proportional to 7,492.92, 11,239.32 and 1,946.28

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Solution

The fourth proportional to 7,492.92, 11,239.32 and 1,946.28 is: 2,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,492.92 : 11,239.32 = 1,946.28 : x
  2. Step 2: Convert to fraction form
    7,492.92/11,239.32 = 1,946.28/x
  3. Step 3: Cross multiply
    7,492.92x = 11,239.32 × 1,946.28
  4. Step 4: Simplify right side
    7,492.92x = 21,874,863.73
  5. Step 5: Solve for x
    x = 21,874,863.73/7,492.92
  6. Step 6: Final answer
    x = 2,919.40

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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.