Home / 2,672.51-4,009.63-1,285.95

Finding the Fourth Proportional to 2,672.51, 4,009.63 and 1,285.95

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Solution

The fourth proportional to 2,672.51, 4,009.63 and 1,285.95 is: 1,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672.51 : 4,009.63 = 1,285.95 : x
  2. Step 2: Convert to fraction form
    2,672.51/4,009.63 = 1,285.95/x
  3. Step 3: Cross multiply
    2,672.51x = 4,009.63 × 1,285.95
  4. Step 4: Simplify right side
    2,672.51x = 5,156,183.70
  5. Step 5: Solve for x
    x = 5,156,183.70/2,672.51
  6. Step 6: Final answer
    x = 1,929.34

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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.