Home / 5,189.51-7,776.96-2,261.67

Finding the Fourth Proportional to 5,189.51, 7,776.96 and 2,261.67

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Solution

The fourth proportional to 5,189.51, 7,776.96 and 2,261.67 is: 3,389.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.51 : 7,776.96 = 2,261.67 : x
  2. Step 2: Convert to fraction form
    5,189.51/7,776.96 = 2,261.67/x
  3. Step 3: Cross multiply
    5,189.51x = 7,776.96 × 2,261.67
  4. Step 4: Simplify right side
    5,189.51x = 17,588,917.12
  5. Step 5: Solve for x
    x = 17,588,917.12/5,189.51
  6. Step 6: Final answer
    x = 3,389.32

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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.