Home / 5,171.32-7,756.33-1,661.05

Finding the Fourth Proportional to 5,171.32, 7,756.33 and 1,661.05

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Solution

The fourth proportional to 5,171.32, 7,756.33 and 1,661.05 is: 2,491.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.32 : 7,756.33 = 1,661.05 : x
  2. Step 2: Convert to fraction form
    5,171.32/7,756.33 = 1,661.05/x
  3. Step 3: Cross multiply
    5,171.32x = 7,756.33 × 1,661.05
  4. Step 4: Simplify right side
    5,171.32x = 12,883,651.95
  5. Step 5: Solve for x
    x = 12,883,651.95/5,171.32
  6. Step 6: Final answer
    x = 2,491.37

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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.