Home / 2,950.37-4,071.90-1,905.47

Finding the Fourth Proportional to 2,950.37, 4,071.90 and 1,905.47

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Solution

The fourth proportional to 2,950.37, 4,071.90 and 1,905.47 is: 2,629.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,950.37 : 4,071.90 = 1,905.47 : x
  2. Step 2: Convert to fraction form
    2,950.37/4,071.90 = 1,905.47/x
  3. Step 3: Cross multiply
    2,950.37x = 4,071.90 × 1,905.47
  4. Step 4: Simplify right side
    2,950.37x = 7,758,862.93
  5. Step 5: Solve for x
    x = 7,758,862.93/2,950.37
  6. Step 6: Final answer
    x = 2,629.80

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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.