Home / 3,520.07-5,279.75-922.67

Finding the Fourth Proportional to 3,520.07, 5,279.75 and 922.67

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Solution

The fourth proportional to 3,520.07, 5,279.75 and 922.67 is: 1,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.07 : 5,279.75 = 922.67 : x
  2. Step 2: Convert to fraction form
    3,520.07/5,279.75 = 922.67/x
  3. Step 3: Cross multiply
    3,520.07x = 5,279.75 × 922.67
  4. Step 4: Simplify right side
    3,520.07x = 4,871,462.32
  5. Step 5: Solve for x
    x = 4,871,462.32/3,520.07
  6. Step 6: Final answer
    x = 1,383.91

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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.