Home / 5,189.43-7,784.61-1,491.57

Finding the Fourth Proportional to 5,189.43, 7,784.61 and 1,491.57

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Solution

The fourth proportional to 5,189.43, 7,784.61 and 1,491.57 is: 2,237.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.43 : 7,784.61 = 1,491.57 : x
  2. Step 2: Convert to fraction form
    5,189.43/7,784.61 = 1,491.57/x
  3. Step 3: Cross multiply
    5,189.43x = 7,784.61 × 1,491.57
  4. Step 4: Simplify right side
    5,189.43x = 11,611,290.74
  5. Step 5: Solve for x
    x = 11,611,290.74/5,189.43
  6. Step 6: Final answer
    x = 2,237.49

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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.