Home / 3,078.07-4,617.51-1,131.64

Finding the Fourth Proportional to 3,078.07, 4,617.51 and 1,131.64

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Solution

The fourth proportional to 3,078.07, 4,617.51 and 1,131.64 is: 1,697.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.07 : 4,617.51 = 1,131.64 : x
  2. Step 2: Convert to fraction form
    3,078.07/4,617.51 = 1,131.64/x
  3. Step 3: Cross multiply
    3,078.07x = 4,617.51 × 1,131.64
  4. Step 4: Simplify right side
    3,078.07x = 5,225,359.02
  5. Step 5: Solve for x
    x = 5,225,359.02/3,078.07
  6. Step 6: Final answer
    x = 1,697.61

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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.