Home / 4,950.90-7,426.46-1,989.64

Finding the Fourth Proportional to 4,950.90, 7,426.46 and 1,989.64

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Solution

The fourth proportional to 4,950.90, 7,426.46 and 1,989.64 is: 2,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,950.90 : 7,426.46 = 1,989.64 : x
  2. Step 2: Convert to fraction form
    4,950.90/7,426.46 = 1,989.64/x
  3. Step 3: Cross multiply
    4,950.90x = 7,426.46 × 1,989.64
  4. Step 4: Simplify right side
    4,950.90x = 14,775,969.65
  5. Step 5: Solve for x
    x = 14,775,969.65/4,950.90
  6. Step 6: Final answer
    x = 2,984.50

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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.