Home / 5,190.06-7,782.78-1,491.45

Finding the Fourth Proportional to 5,190.06, 7,782.78 and 1,491.45

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Solution

The fourth proportional to 5,190.06, 7,782.78 and 1,491.45 is: 2,236.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.06 : 7,782.78 = 1,491.45 : x
  2. Step 2: Convert to fraction form
    5,190.06/7,782.78 = 1,491.45/x
  3. Step 3: Cross multiply
    5,190.06x = 7,782.78 × 1,491.45
  4. Step 4: Simplify right side
    5,190.06x = 11,607,627.23
  5. Step 5: Solve for x
    x = 11,607,627.23/5,190.06
  6. Step 6: Final answer
    x = 2,236.51

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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.