Home / 1,890.18-2,609.70-1,183.08

Finding the Fourth Proportional to 1,890.18, 2,609.70 and 1,183.08

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Solution

The fourth proportional to 1,890.18, 2,609.70 and 1,183.08 is: 1,633.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.18 : 2,609.70 = 1,183.08 : x
  2. Step 2: Convert to fraction form
    1,890.18/2,609.70 = 1,183.08/x
  3. Step 3: Cross multiply
    1,890.18x = 2,609.70 × 1,183.08
  4. Step 4: Simplify right side
    1,890.18x = 3,087,483.88
  5. Step 5: Solve for x
    x = 3,087,483.88/1,890.18
  6. Step 6: Final answer
    x = 1,633.43

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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.