Home / 3,078.09-4,615.52-1,346.31

Finding the Fourth Proportional to 3,078.09, 4,615.52 and 1,346.31

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Solution

The fourth proportional to 3,078.09, 4,615.52 and 1,346.31 is: 2,018.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.09 : 4,615.52 = 1,346.31 : x
  2. Step 2: Convert to fraction form
    3,078.09/4,615.52 = 1,346.31/x
  3. Step 3: Cross multiply
    3,078.09x = 4,615.52 × 1,346.31
  4. Step 4: Simplify right side
    3,078.09x = 6,213,914.00
  5. Step 5: Solve for x
    x = 6,213,914.00/3,078.09
  6. Step 6: Final answer
    x = 2,018.76

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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.