Home / 2,225.70-3,338.55-2,140.65

Finding the Fourth Proportional to 2,225.70, 3,338.55 and 2,140.65

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Solution

The fourth proportional to 2,225.70, 3,338.55 and 2,140.65 is: 3,210.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.70 : 3,338.55 = 2,140.65 : x
  2. Step 2: Convert to fraction form
    2,225.70/3,338.55 = 2,140.65/x
  3. Step 3: Cross multiply
    2,225.70x = 3,338.55 × 2,140.65
  4. Step 4: Simplify right side
    2,225.70x = 7,146,667.06
  5. Step 5: Solve for x
    x = 7,146,667.06/2,225.70
  6. Step 6: Final answer
    x = 3,210.98

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Half scale
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Double scale
Find fourth proportional to 2,226.70, 3,340.05 and 2,141.65
Similar ratio
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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.