Home / 7,739.79-10,679.13-4,381.87

Finding the Fourth Proportional to 7,739.79, 10,679.13 and 4,381.87

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Solution

The fourth proportional to 7,739.79, 10,679.13 and 4,381.87 is: 6,045.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.79 : 10,679.13 = 4,381.87 : x
  2. Step 2: Convert to fraction form
    7,739.79/10,679.13 = 4,381.87/x
  3. Step 3: Cross multiply
    7,739.79x = 10,679.13 × 4,381.87
  4. Step 4: Simplify right side
    7,739.79x = 46,794,559.37
  5. Step 5: Solve for x
    x = 46,794,559.37/7,739.79
  6. Step 6: Final answer
    x = 6,045.97

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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.