Home / 7,768.77-10,720.91-4,231.98

Finding the Fourth Proportional to 7,768.77, 10,720.91 and 4,231.98

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Solution

The fourth proportional to 7,768.77, 10,720.91 and 4,231.98 is: 5,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.77 : 10,720.91 = 4,231.98 : x
  2. Step 2: Convert to fraction form
    7,768.77/10,720.91 = 4,231.98/x
  3. Step 3: Cross multiply
    7,768.77x = 10,720.91 × 4,231.98
  4. Step 4: Simplify right side
    7,768.77x = 45,370,676.70
  5. Step 5: Solve for x
    x = 45,370,676.70/7,768.77
  6. Step 6: Final answer
    x = 5,840.14

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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.