Home / 6,828.20-10,240.47-2,931.69

Finding the Fourth Proportional to 6,828.20, 10,240.47 and 2,931.69

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Solution

The fourth proportional to 6,828.20, 10,240.47 and 2,931.69 is: 4,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,828.20 : 10,240.47 = 2,931.69 : x
  2. Step 2: Convert to fraction form
    6,828.20/10,240.47 = 2,931.69/x
  3. Step 3: Cross multiply
    6,828.20x = 10,240.47 × 2,931.69
  4. Step 4: Simplify right side
    6,828.20x = 30,021,868.84
  5. Step 5: Solve for x
    x = 30,021,868.84/6,828.20
  6. Step 6: Final answer
    x = 4,396.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.