Home / 2,109.37-3,164.09-953.77

Finding the Fourth Proportional to 2,109.37, 3,164.09 and 953.77

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Solution

The fourth proportional to 2,109.37, 3,164.09 and 953.77 is: 1,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.37 : 3,164.09 = 953.77 : x
  2. Step 2: Convert to fraction form
    2,109.37/3,164.09 = 953.77/x
  3. Step 3: Cross multiply
    2,109.37x = 3,164.09 × 953.77
  4. Step 4: Simplify right side
    2,109.37x = 3,017,814.12
  5. Step 5: Solve for x
    x = 3,017,814.12/2,109.37
  6. Step 6: Final answer
    x = 1,430.67

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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.