Home / 2,228.77-3,075.70-1,442.81

Finding the Fourth Proportional to 2,228.77, 3,075.70 and 1,442.81

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Solution

The fourth proportional to 2,228.77, 3,075.70 and 1,442.81 is: 1,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.77 : 3,075.70 = 1,442.81 : x
  2. Step 2: Convert to fraction form
    2,228.77/3,075.70 = 1,442.81/x
  3. Step 3: Cross multiply
    2,228.77x = 3,075.70 × 1,442.81
  4. Step 4: Simplify right side
    2,228.77x = 4,437,653.45
  5. Step 5: Solve for x
    x = 4,437,653.45/2,228.77
  6. Step 6: Final answer
    x = 1,991.08

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1.5x scale

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.