Home / 4,971.65-6,861.06-2,847.51

Finding the Fourth Proportional to 4,971.65, 6,861.06 and 2,847.51

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Solution

The fourth proportional to 4,971.65, 6,861.06 and 2,847.51 is: 3,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.65 : 6,861.06 = 2,847.51 : x
  2. Step 2: Convert to fraction form
    4,971.65/6,861.06 = 2,847.51/x
  3. Step 3: Cross multiply
    4,971.65x = 6,861.06 × 2,847.51
  4. Step 4: Simplify right side
    4,971.65x = 19,536,936.96
  5. Step 5: Solve for x
    x = 19,536,936.96/4,971.65
  6. Step 6: Final answer
    x = 3,929.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.