Home / 3,927.96-5,420.52-2,602.60

Finding the Fourth Proportional to 3,927.96, 5,420.52 and 2,602.60

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Solution

The fourth proportional to 3,927.96, 5,420.52 and 2,602.60 is: 3,591.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.96 : 5,420.52 = 2,602.60 : x
  2. Step 2: Convert to fraction form
    3,927.96/5,420.52 = 2,602.60/x
  3. Step 3: Cross multiply
    3,927.96x = 5,420.52 × 2,602.60
  4. Step 4: Simplify right side
    3,927.96x = 14,107,431.80
  5. Step 5: Solve for x
    x = 14,107,431.80/3,927.96
  6. Step 6: Final answer
    x = 3,591.54

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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.