Home / 3,213.18-4,429.62-2,266.02

Finding the Fourth Proportional to 3,213.18, 4,429.62 and 2,266.02

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Solution

The fourth proportional to 3,213.18, 4,429.62 and 2,266.02 is: 3,123.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.18 : 4,429.62 = 2,266.02 : x
  2. Step 2: Convert to fraction form
    3,213.18/4,429.62 = 2,266.02/x
  3. Step 3: Cross multiply
    3,213.18x = 4,429.62 × 2,266.02
  4. Step 4: Simplify right side
    3,213.18x = 10,037,607.51
  5. Step 5: Solve for x
    x = 10,037,607.51/3,213.18
  6. Step 6: Final answer
    x = 3,123.89

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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.