Home / 2,228.29-3,075.36-1,283.90

Finding the Fourth Proportional to 2,228.29, 3,075.36 and 1,283.90

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Solution

The fourth proportional to 2,228.29, 3,075.36 and 1,283.90 is: 1,771.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.29 : 3,075.36 = 1,283.90 : x
  2. Step 2: Convert to fraction form
    2,228.29/3,075.36 = 1,283.90/x
  3. Step 3: Cross multiply
    2,228.29x = 3,075.36 × 1,283.90
  4. Step 4: Simplify right side
    2,228.29x = 3,948,443.41
  5. Step 5: Solve for x
    x = 3,948,443.41/2,228.29
  6. Step 6: Final answer
    x = 1,771.96

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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.