Home / 7,782.89-10,739.79-4,426.04

Finding the Fourth Proportional to 7,782.89, 10,739.79 and 4,426.04

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Solution

The fourth proportional to 7,782.89, 10,739.79 and 4,426.04 is: 6,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782.89 : 10,739.79 = 4,426.04 : x
  2. Step 2: Convert to fraction form
    7,782.89/10,739.79 = 4,426.04/x
  3. Step 3: Cross multiply
    7,782.89x = 10,739.79 × 4,426.04
  4. Step 4: Simplify right side
    7,782.89x = 47,534,766.98
  5. Step 5: Solve for x
    x = 47,534,766.98/7,782.89
  6. Step 6: Final answer
    x = 6,107.60

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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.