Home / 2,858.10-4,288.76-1,127.94

Finding the Fourth Proportional to 2,858.10, 4,288.76 and 1,127.94

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Solution

The fourth proportional to 2,858.10, 4,288.76 and 1,127.94 is: 1,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.10 : 4,288.76 = 1,127.94 : x
  2. Step 2: Convert to fraction form
    2,858.10/4,288.76 = 1,127.94/x
  3. Step 3: Cross multiply
    2,858.10x = 4,288.76 × 1,127.94
  4. Step 4: Simplify right side
    2,858.10x = 4,837,463.95
  5. Step 5: Solve for x
    x = 4,837,463.95/2,858.10
  6. Step 6: Final answer
    x = 1,692.55

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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.