Home / 1,889.99-2,607.28-1,227.05

Finding the Fourth Proportional to 1,889.99, 2,607.28 and 1,227.05

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Solution

The fourth proportional to 1,889.99, 2,607.28 and 1,227.05 is: 1,692.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.99 : 2,607.28 = 1,227.05 : x
  2. Step 2: Convert to fraction form
    1,889.99/2,607.28 = 1,227.05/x
  3. Step 3: Cross multiply
    1,889.99x = 2,607.28 × 1,227.05
  4. Step 4: Simplify right side
    1,889.99x = 3,199,269.44
  5. Step 5: Solve for x
    x = 3,199,269.44/1,889.99
  6. Step 6: Final answer
    x = 1,692.74

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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.