Home / 2,256.78-3,355.58-2,169.30

Finding the Fourth Proportional to 2,256.78, 3,355.58 and 2,169.30

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Solution

The fourth proportional to 2,256.78, 3,355.58 and 2,169.30 is: 3,225.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.78 : 3,355.58 = 2,169.30 : x
  2. Step 2: Convert to fraction form
    2,256.78/3,355.58 = 2,169.30/x
  3. Step 3: Cross multiply
    2,256.78x = 3,355.58 × 2,169.30
  4. Step 4: Simplify right side
    2,256.78x = 7,279,248.85
  5. Step 5: Solve for x
    x = 7,279,248.85/2,256.78
  6. Step 6: Final answer
    x = 3,225.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.