Home / 5,455.87-8,178.60-1,755.51

Finding the Fourth Proportional to 5,455.87, 8,178.60 and 1,755.51

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Solution

The fourth proportional to 5,455.87, 8,178.60 and 1,755.51 is: 2,631.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.87 : 8,178.60 = 1,755.51 : x
  2. Step 2: Convert to fraction form
    5,455.87/8,178.60 = 1,755.51/x
  3. Step 3: Cross multiply
    5,455.87x = 8,178.60 × 1,755.51
  4. Step 4: Simplify right side
    5,455.87x = 14,357,614.09
  5. Step 5: Solve for x
    x = 14,357,614.09/5,455.87
  6. Step 6: Final answer
    x = 2,631.59

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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.