Home / 3,089.75-4,263.86-1,673.45

Finding the Fourth Proportional to 3,089.75, 4,263.86 and 1,673.45

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Solution

The fourth proportional to 3,089.75, 4,263.86 and 1,673.45 is: 2,309.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.75 : 4,263.86 = 1,673.45 : x
  2. Step 2: Convert to fraction form
    3,089.75/4,263.86 = 1,673.45/x
  3. Step 3: Cross multiply
    3,089.75x = 4,263.86 × 1,673.45
  4. Step 4: Simplify right side
    3,089.75x = 7,135,355.37
  5. Step 5: Solve for x
    x = 7,135,355.37/3,089.75
  6. Step 6: Final answer
    x = 2,309.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.