Home / 2,228.81-3,075.99-1,284.89

Finding the Fourth Proportional to 2,228.81, 3,075.99 and 1,284.89

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Solution

The fourth proportional to 2,228.81, 3,075.99 and 1,284.89 is: 1,773.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.81 : 3,075.99 = 1,284.89 : x
  2. Step 2: Convert to fraction form
    2,228.81/3,075.99 = 1,284.89/x
  3. Step 3: Cross multiply
    2,228.81x = 3,075.99 × 1,284.89
  4. Step 4: Simplify right side
    2,228.81x = 3,952,308.79
  5. Step 5: Solve for x
    x = 3,952,308.79/2,228.81
  6. Step 6: Final answer
    x = 1,773.28

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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.