Home / 2,155.62-3,226.23-1,230.93

Finding the Fourth Proportional to 2,155.62, 3,226.23 and 1,230.93

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Solution

The fourth proportional to 2,155.62, 3,226.23 and 1,230.93 is: 1,842.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.62 : 3,226.23 = 1,230.93 : x
  2. Step 2: Convert to fraction form
    2,155.62/3,226.23 = 1,230.93/x
  3. Step 3: Cross multiply
    2,155.62x = 3,226.23 × 1,230.93
  4. Step 4: Simplify right side
    2,155.62x = 3,971,263.29
  5. Step 5: Solve for x
    x = 3,971,263.29/2,155.62
  6. Step 6: Final answer
    x = 1,842.28

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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.