Home / 5,372.79-7,415.34-3,015.69

Finding the Fourth Proportional to 5,372.79, 7,415.34 and 3,015.69

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Solution

The fourth proportional to 5,372.79, 7,415.34 and 3,015.69 is: 4,162.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.79 : 7,415.34 = 3,015.69 : x
  2. Step 2: Convert to fraction form
    5,372.79/7,415.34 = 3,015.69/x
  3. Step 3: Cross multiply
    5,372.79x = 7,415.34 × 3,015.69
  4. Step 4: Simplify right side
    5,372.79x = 22,362,366.68
  5. Step 5: Solve for x
    x = 22,362,366.68/5,372.79
  6. Step 6: Final answer
    x = 4,162.15

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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.