Home / 5,153.25-7,729.89-1,690.50

Finding the Fourth Proportional to 5,153.25, 7,729.89 and 1,690.50

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Solution

The fourth proportional to 5,153.25, 7,729.89 and 1,690.50 is: 2,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,153.25 : 7,729.89 = 1,690.50 : x
  2. Step 2: Convert to fraction form
    5,153.25/7,729.89 = 1,690.50/x
  3. Step 3: Cross multiply
    5,153.25x = 7,729.89 × 1,690.50
  4. Step 4: Simplify right side
    5,153.25x = 13,067,379.05
  5. Step 5: Solve for x
    x = 13,067,379.05/5,153.25
  6. Step 6: Final answer
    x = 2,535.75

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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.