Home / 1,890.16-2,608.29-1,050.80

Finding the Fourth Proportional to 1,890.16, 2,608.29 and 1,050.80

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Solution

The fourth proportional to 1,890.16, 2,608.29 and 1,050.80 is: 1,450.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.16 : 2,608.29 = 1,050.80 : x
  2. Step 2: Convert to fraction form
    1,890.16/2,608.29 = 1,050.80/x
  3. Step 3: Cross multiply
    1,890.16x = 2,608.29 × 1,050.80
  4. Step 4: Simplify right side
    1,890.16x = 2,740,778.09
  5. Step 5: Solve for x
    x = 2,740,778.09/1,890.16
  6. Step 6: Final answer
    x = 1,450.03

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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.