Home / 5,190.07-7,784.26-1,491.45

Finding the Fourth Proportional to 5,190.07, 7,784.26 and 1,491.45

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Solution

The fourth proportional to 5,190.07, 7,784.26 and 1,491.45 is: 2,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.07 : 7,784.26 = 1,491.45 : x
  2. Step 2: Convert to fraction form
    5,190.07/7,784.26 = 1,491.45/x
  3. Step 3: Cross multiply
    5,190.07x = 7,784.26 × 1,491.45
  4. Step 4: Simplify right side
    5,190.07x = 11,609,834.58
  5. Step 5: Solve for x
    x = 11,609,834.58/5,190.07
  6. Step 6: Final answer
    x = 2,236.93

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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.