Home / 7,748.77-11,623.05-1,905.43

Finding the Fourth Proportional to 7,748.77, 11,623.05 and 1,905.43

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Solution

The fourth proportional to 7,748.77, 11,623.05 and 1,905.43 is: 2,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.77 : 11,623.05 = 1,905.43 : x
  2. Step 2: Convert to fraction form
    7,748.77/11,623.05 = 1,905.43/x
  3. Step 3: Cross multiply
    7,748.77x = 11,623.05 × 1,905.43
  4. Step 4: Simplify right side
    7,748.77x = 22,146,908.16
  5. Step 5: Solve for x
    x = 22,146,908.16/7,748.77
  6. Step 6: Final answer
    x = 2,858.12

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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.