Home / 7,420.40-10,241.32-4,438.56

Finding the Fourth Proportional to 7,420.40, 10,241.32 and 4,438.56

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Solution

The fourth proportional to 7,420.40, 10,241.32 and 4,438.56 is: 6,125.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.40 : 10,241.32 = 4,438.56 : x
  2. Step 2: Convert to fraction form
    7,420.40/10,241.32 = 4,438.56/x
  3. Step 3: Cross multiply
    7,420.40x = 10,241.32 × 4,438.56
  4. Step 4: Simplify right side
    7,420.40x = 45,456,713.30
  5. Step 5: Solve for x
    x = 45,456,713.30/7,420.40
  6. Step 6: Final answer
    x = 6,125.91

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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.