Home / 2,558.08-3,830.28-1,628.60

Finding the Fourth Proportional to 2,558.08, 3,830.28 and 1,628.60

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Solution

The fourth proportional to 2,558.08, 3,830.28 and 1,628.60 is: 2,438.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.08 : 3,830.28 = 1,628.60 : x
  2. Step 2: Convert to fraction form
    2,558.08/3,830.28 = 1,628.60/x
  3. Step 3: Cross multiply
    2,558.08x = 3,830.28 × 1,628.60
  4. Step 4: Simplify right side
    2,558.08x = 6,237,985.87
  5. Step 5: Solve for x
    x = 6,237,985.87/2,558.08
  6. Step 6: Final answer
    x = 2,438.55

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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.