Home / 2,025.63-3,039.01-638.93

Finding the Fourth Proportional to 2,025.63, 3,039.01 and 638.93

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Solution

The fourth proportional to 2,025.63, 3,039.01 and 638.93 is: 958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.63 : 3,039.01 = 638.93 : x
  2. Step 2: Convert to fraction form
    2,025.63/3,039.01 = 638.93/x
  3. Step 3: Cross multiply
    2,025.63x = 3,039.01 × 638.93
  4. Step 4: Simplify right side
    2,025.63x = 1,941,720.66
  5. Step 5: Solve for x
    x = 1,941,720.66/2,025.63
  6. Step 6: Final answer
    x = 958.58

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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.