Home / 3,071.30-4,606.34-1,428.62

Finding the Fourth Proportional to 3,071.30, 4,606.34 and 1,428.62

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Solution

The fourth proportional to 3,071.30, 4,606.34 and 1,428.62 is: 2,142.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.30 : 4,606.34 = 1,428.62 : x
  2. Step 2: Convert to fraction form
    3,071.30/4,606.34 = 1,428.62/x
  3. Step 3: Cross multiply
    3,071.30x = 4,606.34 × 1,428.62
  4. Step 4: Simplify right side
    3,071.30x = 6,580,709.45
  5. Step 5: Solve for x
    x = 6,580,709.45/3,071.30
  6. Step 6: Final answer
    x = 2,142.65

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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.