Home / 1,890.24-2,609.11-1,144.53

Finding the Fourth Proportional to 1,890.24, 2,609.11 and 1,144.53

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Solution

The fourth proportional to 1,890.24, 2,609.11 and 1,144.53 is: 1,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.24 : 2,609.11 = 1,144.53 : x
  2. Step 2: Convert to fraction form
    1,890.24/2,609.11 = 1,144.53/x
  3. Step 3: Cross multiply
    1,890.24x = 2,609.11 × 1,144.53
  4. Step 4: Simplify right side
    1,890.24x = 2,986,206.10
  5. Step 5: Solve for x
    x = 2,986,206.10/1,890.24
  6. Step 6: Final answer
    x = 1,579.81

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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.