Home / 3,240-4,861.44-1,510.08

Finding the Fourth Proportional to 3,240, 4,861.44 and 1,510.08

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Solution

The fourth proportional to 3,240, 4,861.44 and 1,510.08 is: 2,265.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240 : 4,861.44 = 1,510.08 : x
  2. Step 2: Convert to fraction form
    3,240/4,861.44 = 1,510.08/x
  3. Step 3: Cross multiply
    3,240x = 4,861.44 × 1,510.08
  4. Step 4: Simplify right side
    3,240x = 7,341,163.32
  5. Step 5: Solve for x
    x = 7,341,163.32/3,240
  6. Step 6: Final answer
    x = 2,265.79

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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.