Home / 5,481.84-7,563.60-3,125.28

Finding the Fourth Proportional to 5,481.84, 7,563.60 and 3,125.28

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Solution

The fourth proportional to 5,481.84, 7,563.60 and 3,125.28 is: 4,312.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.84 : 7,563.60 = 3,125.28 : x
  2. Step 2: Convert to fraction form
    5,481.84/7,563.60 = 3,125.28/x
  3. Step 3: Cross multiply
    5,481.84x = 7,563.60 × 3,125.28
  4. Step 4: Simplify right side
    5,481.84x = 23,638,367.81
  5. Step 5: Solve for x
    x = 23,638,367.81/5,481.84
  6. Step 6: Final answer
    x = 4,312.12

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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.