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Finding the Fourth Proportional to 7,091.80, 10,636.84 and 1,898.08

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Solution

The fourth proportional to 7,091.80, 10,636.84 and 1,898.08 is: 2,846.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.80 : 10,636.84 = 1,898.08 : x
  2. Step 2: Convert to fraction form
    7,091.80/10,636.84 = 1,898.08/x
  3. Step 3: Cross multiply
    7,091.80x = 10,636.84 × 1,898.08
  4. Step 4: Simplify right side
    7,091.80x = 20,189,573.27
  5. Step 5: Solve for x
    x = 20,189,573.27/7,091.80
  6. Step 6: Final answer
    x = 2,846.89

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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.