Home / 6,868.80-9,485.68-4,749.76

Finding the Fourth Proportional to 6,868.80, 9,485.68 and 4,749.76

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Solution

The fourth proportional to 6,868.80, 9,485.68 and 4,749.76 is: 6,559.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.80 : 9,485.68 = 4,749.76 : x
  2. Step 2: Convert to fraction form
    6,868.80/9,485.68 = 4,749.76/x
  3. Step 3: Cross multiply
    6,868.80x = 9,485.68 × 4,749.76
  4. Step 4: Simplify right side
    6,868.80x = 45,054,703.44
  5. Step 5: Solve for x
    x = 45,054,703.44/6,868.80
  6. Step 6: Final answer
    x = 6,559.33

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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.