Home / 3,127.90-4,314.61-2,065.67

Finding the Fourth Proportional to 3,127.90, 4,314.61 and 2,065.67

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Solution

The fourth proportional to 3,127.90, 4,314.61 and 2,065.67 is: 2,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.90 : 4,314.61 = 2,065.67 : x
  2. Step 2: Convert to fraction form
    3,127.90/4,314.61 = 2,065.67/x
  3. Step 3: Cross multiply
    3,127.90x = 4,314.61 × 2,065.67
  4. Step 4: Simplify right side
    3,127.90x = 8,912,560.44
  5. Step 5: Solve for x
    x = 8,912,560.44/3,127.90
  6. Step 6: Final answer
    x = 2,849.38

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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.