Home / 5,185.51-7,155.99-2,827.67

Finding the Fourth Proportional to 5,185.51, 7,155.99 and 2,827.67

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Solution

The fourth proportional to 5,185.51, 7,155.99 and 2,827.67 is: 3,902.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.51 : 7,155.99 = 2,827.67 : x
  2. Step 2: Convert to fraction form
    5,185.51/7,155.99 = 2,827.67/x
  3. Step 3: Cross multiply
    5,185.51x = 7,155.99 × 2,827.67
  4. Step 4: Simplify right side
    5,185.51x = 20,234,742.46
  5. Step 5: Solve for x
    x = 20,234,742.46/5,185.51
  6. Step 6: Final answer
    x = 3,902.17

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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.