Home / 3,638.93-5,018.25-2,379.58

Finding the Fourth Proportional to 3,638.93, 5,018.25 and 2,379.58

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Solution

The fourth proportional to 3,638.93, 5,018.25 and 2,379.58 is: 3,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.93 : 5,018.25 = 2,379.58 : x
  2. Step 2: Convert to fraction form
    3,638.93/5,018.25 = 2,379.58/x
  3. Step 3: Cross multiply
    3,638.93x = 5,018.25 × 2,379.58
  4. Step 4: Simplify right side
    3,638.93x = 11,941,323.71
  5. Step 5: Solve for x
    x = 11,941,323.71/3,638.93
  6. Step 6: Final answer
    x = 3,281.55

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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.