Home / 2,228.16-3,338.88-929.28

Finding the Fourth Proportional to 2,228.16, 3,338.88 and 929.28

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Solution

The fourth proportional to 2,228.16, 3,338.88 and 929.28 is: 1,392.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.16 : 3,338.88 = 929.28 : x
  2. Step 2: Convert to fraction form
    2,228.16/3,338.88 = 929.28/x
  3. Step 3: Cross multiply
    2,228.16x = 3,338.88 × 929.28
  4. Step 4: Simplify right side
    2,228.16x = 3,102,754.41
  5. Step 5: Solve for x
    x = 3,102,754.41/2,228.16
  6. Step 6: Final answer
    x = 1,392.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.