Home / 3,240.46-4,470.67-2,122.05

Finding the Fourth Proportional to 3,240.46, 4,470.67 and 2,122.05

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Solution

The fourth proportional to 3,240.46, 4,470.67 and 2,122.05 is: 2,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.46 : 4,470.67 = 2,122.05 : x
  2. Step 2: Convert to fraction form
    3,240.46/4,470.67 = 2,122.05/x
  3. Step 3: Cross multiply
    3,240.46x = 4,470.67 × 2,122.05
  4. Step 4: Simplify right side
    3,240.46x = 9,486,985.27
  5. Step 5: Solve for x
    x = 9,486,985.27/3,240.46
  6. Step 6: Final answer
    x = 2,927.67

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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.