Home / 2,450.15-3,674.77-1,278.89

Finding the Fourth Proportional to 2,450.15, 3,674.77 and 1,278.89

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Solution

The fourth proportional to 2,450.15, 3,674.77 and 1,278.89 is: 1,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.15 : 3,674.77 = 1,278.89 : x
  2. Step 2: Convert to fraction form
    2,450.15/3,674.77 = 1,278.89/x
  3. Step 3: Cross multiply
    2,450.15x = 3,674.77 × 1,278.89
  4. Step 4: Simplify right side
    2,450.15x = 4,699,618.81
  5. Step 5: Solve for x
    x = 4,699,618.81/2,450.15
  6. Step 6: Final answer
    x = 1,918.10

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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.