Home / 2,228.20-3,075.56-1,565.22

Finding the Fourth Proportional to 2,228.20, 3,075.56 and 1,565.22

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Solution

The fourth proportional to 2,228.20, 3,075.56 and 1,565.22 is: 2,160.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.20 : 3,075.56 = 1,565.22 : x
  2. Step 2: Convert to fraction form
    2,228.20/3,075.56 = 1,565.22/x
  3. Step 3: Cross multiply
    2,228.20x = 3,075.56 × 1,565.22
  4. Step 4: Simplify right side
    2,228.20x = 4,813,928.02
  5. Step 5: Solve for x
    x = 4,813,928.02/2,228.20
  6. Step 6: Final answer
    x = 2,160.46

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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.