Home / 3,078.91-4,610.64-1,904.08

Finding the Fourth Proportional to 3,078.91, 4,610.64 and 1,904.08

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Solution

The fourth proportional to 3,078.91, 4,610.64 and 1,904.08 is: 2,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.91 : 4,610.64 = 1,904.08 : x
  2. Step 2: Convert to fraction form
    3,078.91/4,610.64 = 1,904.08/x
  3. Step 3: Cross multiply
    3,078.91x = 4,610.64 × 1,904.08
  4. Step 4: Simplify right side
    3,078.91x = 8,779,027.41
  5. Step 5: Solve for x
    x = 8,779,027.41/3,078.91
  6. Step 6: Final answer
    x = 2,851.34

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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.