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Finding the Fourth Proportional to 7,084.71, 10,627.08 and 1,890.57

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Solution

The fourth proportional to 7,084.71, 10,627.08 and 1,890.57 is: 2,835.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,084.71 : 10,627.08 = 1,890.57 : x
  2. Step 2: Convert to fraction form
    7,084.71/10,627.08 = 1,890.57/x
  3. Step 3: Cross multiply
    7,084.71x = 10,627.08 × 1,890.57
  4. Step 4: Simplify right side
    7,084.71x = 20,091,238.64
  5. Step 5: Solve for x
    x = 20,091,238.64/7,084.71
  6. Step 6: Final answer
    x = 2,835.86

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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.