Home / 7,760.72-10,709.48-4,223.92

Finding the Fourth Proportional to 7,760.72, 10,709.48 and 4,223.92

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Solution

The fourth proportional to 7,760.72, 10,709.48 and 4,223.92 is: 5,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,760.72 : 10,709.48 = 4,223.92 : x
  2. Step 2: Convert to fraction form
    7,760.72/10,709.48 = 4,223.92/x
  3. Step 3: Cross multiply
    7,760.72x = 10,709.48 × 4,223.92
  4. Step 4: Simplify right side
    7,760.72x = 45,235,986.76
  5. Step 5: Solve for x
    x = 45,235,986.76/7,760.72
  6. Step 6: Final answer
    x = 5,828.84

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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.