Home / 3,436.41-5,155.14-1,245.65

Finding the Fourth Proportional to 3,436.41, 5,155.14 and 1,245.65

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Solution

The fourth proportional to 3,436.41, 5,155.14 and 1,245.65 is: 1,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,436.41 : 5,155.14 = 1,245.65 : x
  2. Step 2: Convert to fraction form
    3,436.41/5,155.14 = 1,245.65/x
  3. Step 3: Cross multiply
    3,436.41x = 5,155.14 × 1,245.65
  4. Step 4: Simplify right side
    3,436.41x = 6,421,500.14
  5. Step 5: Solve for x
    x = 6,421,500.14/3,436.41
  6. Step 6: Final answer
    x = 1,868.67

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Double scale
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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.