Home / 3,518.75-5,280.69-1,571.51

Finding the Fourth Proportional to 3,518.75, 5,280.69 and 1,571.51

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Solution

The fourth proportional to 3,518.75, 5,280.69 and 1,571.51 is: 2,358.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.75 : 5,280.69 = 1,571.51 : x
  2. Step 2: Convert to fraction form
    3,518.75/5,280.69 = 1,571.51/x
  3. Step 3: Cross multiply
    3,518.75x = 5,280.69 × 1,571.51
  4. Step 4: Simplify right side
    3,518.75x = 8,298,657.14
  5. Step 5: Solve for x
    x = 8,298,657.14/3,518.75
  6. Step 6: Final answer
    x = 2,358.41

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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.