Home / 4,308.84-6,428.55-3,893.64

Finding the Fourth Proportional to 4,308.84, 6,428.55 and 3,893.64

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Solution

The fourth proportional to 4,308.84, 6,428.55 and 3,893.64 is: 5,809.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,308.84 : 6,428.55 = 3,893.64 : x
  2. Step 2: Convert to fraction form
    4,308.84/6,428.55 = 3,893.64/x
  3. Step 3: Cross multiply
    4,308.84x = 6,428.55 × 3,893.64
  4. Step 4: Simplify right side
    4,308.84x = 25,030,459.42
  5. Step 5: Solve for x
    x = 25,030,459.42/4,308.84
  6. Step 6: Final answer
    x = 5,809.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.