Home / 3,077.64-4,616.30-1,129.69

Finding the Fourth Proportional to 3,077.64, 4,616.30 and 1,129.69

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Solution

The fourth proportional to 3,077.64, 4,616.30 and 1,129.69 is: 1,694.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.64 : 4,616.30 = 1,129.69 : x
  2. Step 2: Convert to fraction form
    3,077.64/4,616.30 = 1,129.69/x
  3. Step 3: Cross multiply
    3,077.64x = 4,616.30 × 1,129.69
  4. Step 4: Simplify right side
    3,077.64x = 5,214,979.23
  5. Step 5: Solve for x
    x = 5,214,979.23/3,077.64
  6. Step 6: Final answer
    x = 1,694.47

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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.