Home / 3,313.86-4,571.20-2,069.70

Finding the Fourth Proportional to 3,313.86, 4,571.20 and 2,069.70

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Solution

The fourth proportional to 3,313.86, 4,571.20 and 2,069.70 is: 2,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.86 : 4,571.20 = 2,069.70 : x
  2. Step 2: Convert to fraction form
    3,313.86/4,571.20 = 2,069.70/x
  3. Step 3: Cross multiply
    3,313.86x = 4,571.20 × 2,069.70
  4. Step 4: Simplify right side
    3,313.86x = 9,461,012.64
  5. Step 5: Solve for x
    x = 9,461,012.64/3,313.86
  6. Step 6: Final answer
    x = 2,854.98

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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.