Home / 4,901.90-7,351.48-1,391.62

Finding the Fourth Proportional to 4,901.90, 7,351.48 and 1,391.62

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Solution

The fourth proportional to 4,901.90, 7,351.48 and 1,391.62 is: 2,087.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,901.90 : 7,351.48 = 1,391.62 : x
  2. Step 2: Convert to fraction form
    4,901.90/7,351.48 = 1,391.62/x
  3. Step 3: Cross multiply
    4,901.90x = 7,351.48 × 1,391.62
  4. Step 4: Simplify right side
    4,901.90x = 10,230,466.60
  5. Step 5: Solve for x
    x = 10,230,466.60/4,901.90
  6. Step 6: Final answer
    x = 2,087.04

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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.