Home / 5,190.21-7,785.32-1,727.46

Finding the Fourth Proportional to 5,190.21, 7,785.32 and 1,727.46

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Solution

The fourth proportional to 5,190.21, 7,785.32 and 1,727.46 is: 2,591.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.21 : 7,785.32 = 1,727.46 : x
  2. Step 2: Convert to fraction form
    5,190.21/7,785.32 = 1,727.46/x
  3. Step 3: Cross multiply
    5,190.21x = 7,785.32 × 1,727.46
  4. Step 4: Simplify right side
    5,190.21x = 13,448,820.25
  5. Step 5: Solve for x
    x = 13,448,820.25/5,190.21
  6. Step 6: Final answer
    x = 2,591.19

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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.