Home / 3,701.61-5,108.46-2,129.67

Finding the Fourth Proportional to 3,701.61, 5,108.46 and 2,129.67

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Solution

The fourth proportional to 3,701.61, 5,108.46 and 2,129.67 is: 2,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.61 : 5,108.46 = 2,129.67 : x
  2. Step 2: Convert to fraction form
    3,701.61/5,108.46 = 2,129.67/x
  3. Step 3: Cross multiply
    3,701.61x = 5,108.46 × 2,129.67
  4. Step 4: Simplify right side
    3,701.61x = 10,879,334.01
  5. Step 5: Solve for x
    x = 10,879,334.01/3,701.61
  6. Step 6: Final answer
    x = 2,939.08

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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.