Home / 2,864.70-4,289.75-1,887.84

Finding the Fourth Proportional to 2,864.70, 4,289.75 and 1,887.84

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Solution

The fourth proportional to 2,864.70, 4,289.75 and 1,887.84 is: 2,826.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.70 : 4,289.75 = 1,887.84 : x
  2. Step 2: Convert to fraction form
    2,864.70/4,289.75 = 1,887.84/x
  3. Step 3: Cross multiply
    2,864.70x = 4,289.75 × 1,887.84
  4. Step 4: Simplify right side
    2,864.70x = 8,098,352.20
  5. Step 5: Solve for x
    x = 8,098,352.20/2,864.70
  6. Step 6: Final answer
    x = 2,826.95

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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.