Home / 3,846.42-5,308.02-2,167.80

Finding the Fourth Proportional to 3,846.42, 5,308.02 and 2,167.80

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Solution

The fourth proportional to 3,846.42, 5,308.02 and 2,167.80 is: 2,991.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.42 : 5,308.02 = 2,167.80 : x
  2. Step 2: Convert to fraction form
    3,846.42/5,308.02 = 2,167.80/x
  3. Step 3: Cross multiply
    3,846.42x = 5,308.02 × 2,167.80
  4. Step 4: Simplify right side
    3,846.42x = 11,506,725.76
  5. Step 5: Solve for x
    x = 11,506,725.76/3,846.42
  6. Step 6: Final answer
    x = 2,991.54

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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.