Home / 4,920.90-7,378.62-3,534.89

Finding the Fourth Proportional to 4,920.90, 7,378.62 and 3,534.89

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Solution

The fourth proportional to 4,920.90, 7,378.62 and 3,534.89 is: 5,300.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.90 : 7,378.62 = 3,534.89 : x
  2. Step 2: Convert to fraction form
    4,920.90/7,378.62 = 3,534.89/x
  3. Step 3: Cross multiply
    4,920.90x = 7,378.62 × 3,534.89
  4. Step 4: Simplify right side
    4,920.90x = 26,082,611.35
  5. Step 5: Solve for x
    x = 26,082,611.35/4,920.90
  6. Step 6: Final answer
    x = 5,300.37

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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.