Home / 3,115.86-4,674.70-1,168.21

Finding the Fourth Proportional to 3,115.86, 4,674.70 and 1,168.21

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Solution

The fourth proportional to 3,115.86, 4,674.70 and 1,168.21 is: 1,752.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.86 : 4,674.70 = 1,168.21 : x
  2. Step 2: Convert to fraction form
    3,115.86/4,674.70 = 1,168.21/x
  3. Step 3: Cross multiply
    3,115.86x = 4,674.70 × 1,168.21
  4. Step 4: Simplify right side
    3,115.86x = 5,461,025.45
  5. Step 5: Solve for x
    x = 5,461,025.45/3,115.86
  6. Step 6: Final answer
    x = 1,752.66

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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.