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Finding the Fourth Proportional to 2,950.70, 4,071.23 and 1,901.50

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Solution

The fourth proportional to 2,950.70, 4,071.23 and 1,901.50 is: 2,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.70 : 4,071.23 = 1,901.50 : x
  2. Step 2: Convert to fraction form
    2,950.70/4,071.23 = 1,901.50/x
  3. Step 3: Cross multiply
    2,950.70x = 4,071.23 × 1,901.50
  4. Step 4: Simplify right side
    2,950.70x = 7,741,443.85
  5. Step 5: Solve for x
    x = 7,741,443.85/2,950.70
  6. Step 6: Final answer
    x = 2,623.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.