Home / 5,122.41-7,686.60-2,160.67

Finding the Fourth Proportional to 5,122.41, 7,686.60 and 2,160.67

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Solution

The fourth proportional to 5,122.41, 7,686.60 and 2,160.67 is: 3,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.41 : 7,686.60 = 2,160.67 : x
  2. Step 2: Convert to fraction form
    5,122.41/7,686.60 = 2,160.67/x
  3. Step 3: Cross multiply
    5,122.41x = 7,686.60 × 2,160.67
  4. Step 4: Simplify right side
    5,122.41x = 16,608,206.02
  5. Step 5: Solve for x
    x = 16,608,206.02/5,122.41
  6. Step 6: Final answer
    x = 3,242.26

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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.