Home / 2,945.71-4,065.08-1,619.50

Finding the Fourth Proportional to 2,945.71, 4,065.08 and 1,619.50

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Solution

The fourth proportional to 2,945.71, 4,065.08 and 1,619.50 is: 2,234.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.71 : 4,065.08 = 1,619.50 : x
  2. Step 2: Convert to fraction form
    2,945.71/4,065.08 = 1,619.50/x
  3. Step 3: Cross multiply
    2,945.71x = 4,065.08 × 1,619.50
  4. Step 4: Simplify right side
    2,945.71x = 6,583,411.27
  5. Step 5: Solve for x
    x = 6,583,411.27/2,945.71
  6. Step 6: Final answer
    x = 2,234.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.