Home / 3,428.76-4,725.21-3,365.58

Finding the Fourth Proportional to 3,428.76, 4,725.21 and 3,365.58

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Solution

The fourth proportional to 3,428.76, 4,725.21 and 3,365.58 is: 4,638.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.76 : 4,725.21 = 3,365.58 : x
  2. Step 2: Convert to fraction form
    3,428.76/4,725.21 = 3,365.58/x
  3. Step 3: Cross multiply
    3,428.76x = 4,725.21 × 3,365.58
  4. Step 4: Simplify right side
    3,428.76x = 15,903,072.27
  5. Step 5: Solve for x
    x = 15,903,072.27/3,428.76
  6. Step 6: Final answer
    x = 4,638.14

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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.