Home / 5,181.32-7,769.57-1,670.67

Finding the Fourth Proportional to 5,181.32, 7,769.57 and 1,670.67

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Solution

The fourth proportional to 5,181.32, 7,769.57 and 1,670.67 is: 2,505.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.32 : 7,769.57 = 1,670.67 : x
  2. Step 2: Convert to fraction form
    5,181.32/7,769.57 = 1,670.67/x
  3. Step 3: Cross multiply
    5,181.32x = 7,769.57 × 1,670.67
  4. Step 4: Simplify right side
    5,181.32x = 12,980,379.16
  5. Step 5: Solve for x
    x = 12,980,379.16/5,181.32
  6. Step 6: Final answer
    x = 2,505.23

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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.