Home / 3,639.06-5,460.75-1,790.37

Finding the Fourth Proportional to 3,639.06, 5,460.75 and 1,790.37

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Solution

The fourth proportional to 3,639.06, 5,460.75 and 1,790.37 is: 2,686.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.06 : 5,460.75 = 1,790.37 : x
  2. Step 2: Convert to fraction form
    3,639.06/5,460.75 = 1,790.37/x
  3. Step 3: Cross multiply
    3,639.06x = 5,460.75 × 1,790.37
  4. Step 4: Simplify right side
    3,639.06x = 9,776,762.98
  5. Step 5: Solve for x
    x = 9,776,762.98/3,639.06
  6. Step 6: Final answer
    x = 2,686.62

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1.5x scale

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.