Home / 4,890.68-6,749.01-2,975.78

Finding the Fourth Proportional to 4,890.68, 6,749.01 and 2,975.78

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Solution

The fourth proportional to 4,890.68, 6,749.01 and 2,975.78 is: 4,106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.68 : 6,749.01 = 2,975.78 : x
  2. Step 2: Convert to fraction form
    4,890.68/6,749.01 = 2,975.78/x
  3. Step 3: Cross multiply
    4,890.68x = 6,749.01 × 2,975.78
  4. Step 4: Simplify right side
    4,890.68x = 20,083,568.98
  5. Step 5: Solve for x
    x = 20,083,568.98/4,890.68
  6. Step 6: Final answer
    x = 4,106.50

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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.