Home / 3,071.28-4,606.80-1,339.88

Finding the Fourth Proportional to 3,071.28, 4,606.80 and 1,339.88

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Solution

The fourth proportional to 3,071.28, 4,606.80 and 1,339.88 is: 2,009.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.28 : 4,606.80 = 1,339.88 : x
  2. Step 2: Convert to fraction form
    3,071.28/4,606.80 = 1,339.88/x
  3. Step 3: Cross multiply
    3,071.28x = 4,606.80 × 1,339.88
  4. Step 4: Simplify right side
    3,071.28x = 6,172,559.18
  5. Step 5: Solve for x
    x = 6,172,559.18/3,071.28
  6. Step 6: Final answer
    x = 2,009.77

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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.