Home / 5,343.60-8,015.40-3,391.56

Finding the Fourth Proportional to 5,343.60, 8,015.40 and 3,391.56

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Solution

The fourth proportional to 5,343.60, 8,015.40 and 3,391.56 is: 5,087.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,343.60 : 8,015.40 = 3,391.56 : x
  2. Step 2: Convert to fraction form
    5,343.60/8,015.40 = 3,391.56/x
  3. Step 3: Cross multiply
    5,343.60x = 8,015.40 × 3,391.56
  4. Step 4: Simplify right side
    5,343.60x = 27,184,710.02
  5. Step 5: Solve for x
    x = 27,184,710.02/5,343.60
  6. Step 6: Final answer
    x = 5,087.34

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1.5x scale

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.