Home / 7,408.79-10,219.32-4,422.32

Finding the Fourth Proportional to 7,408.79, 10,219.32 and 4,422.32

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Solution

The fourth proportional to 7,408.79, 10,219.32 and 4,422.32 is: 6,099.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.79 : 10,219.32 = 4,422.32 : x
  2. Step 2: Convert to fraction form
    7,408.79/10,219.32 = 4,422.32/x
  3. Step 3: Cross multiply
    7,408.79x = 10,219.32 × 4,422.32
  4. Step 4: Simplify right side
    7,408.79x = 45,193,103.22
  5. Step 5: Solve for x
    x = 45,193,103.22/7,408.79
  6. Step 6: Final answer
    x = 6,099.93

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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.