Home / 4,918.61-6,785.03-3,122.84

Finding the Fourth Proportional to 4,918.61, 6,785.03 and 3,122.84

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Solution

The fourth proportional to 4,918.61, 6,785.03 and 3,122.84 is: 4,307.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.61 : 6,785.03 = 3,122.84 : x
  2. Step 2: Convert to fraction form
    4,918.61/6,785.03 = 3,122.84/x
  3. Step 3: Cross multiply
    4,918.61x = 6,785.03 × 3,122.84
  4. Step 4: Simplify right side
    4,918.61x = 21,188,563.09
  5. Step 5: Solve for x
    x = 21,188,563.09/4,918.61
  6. Step 6: Final answer
    x = 4,307.84

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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.