Home / 5,190.58-7,786.33-1,903.70

Finding the Fourth Proportional to 5,190.58, 7,786.33 and 1,903.70

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Solution

The fourth proportional to 5,190.58, 7,786.33 and 1,903.70 is: 2,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.58 : 7,786.33 = 1,903.70 : x
  2. Step 2: Convert to fraction form
    5,190.58/7,786.33 = 1,903.70/x
  3. Step 3: Cross multiply
    5,190.58x = 7,786.33 × 1,903.70
  4. Step 4: Simplify right side
    5,190.58x = 14,822,851.13
  5. Step 5: Solve for x
    x = 14,822,851.13/5,190.58
  6. Step 6: Final answer
    x = 2,855.72

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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.