Home / 5,376.45-7,419.29-3,018.54

Finding the Fourth Proportional to 5,376.45, 7,419.29 and 3,018.54

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Solution

The fourth proportional to 5,376.45, 7,419.29 and 3,018.54 is: 4,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.45 : 7,419.29 = 3,018.54 : x
  2. Step 2: Convert to fraction form
    5,376.45/7,419.29 = 3,018.54/x
  3. Step 3: Cross multiply
    5,376.45x = 7,419.29 × 3,018.54
  4. Step 4: Simplify right side
    5,376.45x = 22,395,408.54
  5. Step 5: Solve for x
    x = 22,395,408.54/5,376.45
  6. Step 6: Final answer
    x = 4,165.46

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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.