Home / 2,228.93-3,075.98-1,220.74

Finding the Fourth Proportional to 2,228.93, 3,075.98 and 1,220.74

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Solution

The fourth proportional to 2,228.93, 3,075.98 and 1,220.74 is: 1,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.93 : 3,075.98 = 1,220.74 : x
  2. Step 2: Convert to fraction form
    2,228.93/3,075.98 = 1,220.74/x
  3. Step 3: Cross multiply
    2,228.93x = 3,075.98 × 1,220.74
  4. Step 4: Simplify right side
    2,228.93x = 3,754,964.90
  5. Step 5: Solve for x
    x = 3,754,964.90/2,228.93
  6. Step 6: Final answer
    x = 1,684.65

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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.