Home / 4,759.42-7,138.40-1,638.94

Finding the Fourth Proportional to 4,759.42, 7,138.40 and 1,638.94

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Solution

The fourth proportional to 4,759.42, 7,138.40 and 1,638.94 is: 2,458.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.42 : 7,138.40 = 1,638.94 : x
  2. Step 2: Convert to fraction form
    4,759.42/7,138.40 = 1,638.94/x
  3. Step 3: Cross multiply
    4,759.42x = 7,138.40 × 1,638.94
  4. Step 4: Simplify right side
    4,759.42x = 11,699,409.30
  5. Step 5: Solve for x
    x = 11,699,409.30/4,759.42
  6. Step 6: Final answer
    x = 2,458.16

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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.