Home / 5,050.40-7,576.62-2,128.70

Finding the Fourth Proportional to 5,050.40, 7,576.62 and 2,128.70

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Solution

The fourth proportional to 5,050.40, 7,576.62 and 2,128.70 is: 3,193.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,050.40 : 7,576.62 = 2,128.70 : x
  2. Step 2: Convert to fraction form
    5,050.40/7,576.62 = 2,128.70/x
  3. Step 3: Cross multiply
    5,050.40x = 7,576.62 × 2,128.70
  4. Step 4: Simplify right side
    5,050.40x = 16,128,313.11
  5. Step 5: Solve for x
    x = 16,128,313.11/5,050.40
  6. Step 6: Final answer
    x = 3,193.48

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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.