Home / 4,871.39-7,308.30-1,408.64

Finding the Fourth Proportional to 4,871.39, 7,308.30 and 1,408.64

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Solution

The fourth proportional to 4,871.39, 7,308.30 and 1,408.64 is: 2,113.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,871.39 : 7,308.30 = 1,408.64 : x
  2. Step 2: Convert to fraction form
    4,871.39/7,308.30 = 1,408.64/x
  3. Step 3: Cross multiply
    4,871.39x = 7,308.30 × 1,408.64
  4. Step 4: Simplify right side
    4,871.39x = 10,294,769.60
  5. Step 5: Solve for x
    x = 10,294,769.60/4,871.39
  6. Step 6: Final answer
    x = 2,113.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.