Home / 3,190.61-4,783.71-1,627.58

Finding the Fourth Proportional to 3,190.61, 4,783.71 and 1,627.58

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Solution

The fourth proportional to 3,190.61, 4,783.71 and 1,627.58 is: 2,440.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.61 : 4,783.71 = 1,627.58 : x
  2. Step 2: Convert to fraction form
    3,190.61/4,783.71 = 1,627.58/x
  3. Step 3: Cross multiply
    3,190.61x = 4,783.71 × 1,627.58
  4. Step 4: Simplify right side
    3,190.61x = 7,785,870.72
  5. Step 5: Solve for x
    x = 7,785,870.72/3,190.61
  6. Step 6: Final answer
    x = 2,440.25

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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.