Home / 3,770.36-5,656.86-1,690.16

Finding the Fourth Proportional to 3,770.36, 5,656.86 and 1,690.16

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Solution

The fourth proportional to 3,770.36, 5,656.86 and 1,690.16 is: 2,535.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770.36 : 5,656.86 = 1,690.16 : x
  2. Step 2: Convert to fraction form
    3,770.36/5,656.86 = 1,690.16/x
  3. Step 3: Cross multiply
    3,770.36x = 5,656.86 × 1,690.16
  4. Step 4: Simplify right side
    3,770.36x = 9,560,998.50
  5. Step 5: Solve for x
    x = 9,560,998.50/3,770.36
  6. Step 6: Final answer
    x = 2,535.83

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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.