Home / 4,900.41-7,351.63-1,978.94

Finding the Fourth Proportional to 4,900.41, 7,351.63 and 1,978.94

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Solution

The fourth proportional to 4,900.41, 7,351.63 and 1,978.94 is: 2,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900.41 : 7,351.63 = 1,978.94 : x
  2. Step 2: Convert to fraction form
    4,900.41/7,351.63 = 1,978.94/x
  3. Step 3: Cross multiply
    4,900.41x = 7,351.63 × 1,978.94
  4. Step 4: Simplify right side
    4,900.41x = 14,548,448.10
  5. Step 5: Solve for x
    x = 14,548,448.10/4,900.41
  6. Step 6: Final answer
    x = 2,968.82

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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.