Home / 3,303.40-4,558.70-1,811.45

Finding the Fourth Proportional to 3,303.40, 4,558.70 and 1,811.45

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Solution

The fourth proportional to 3,303.40, 4,558.70 and 1,811.45 is: 2,499.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,303.40 : 4,558.70 = 1,811.45 : x
  2. Step 2: Convert to fraction form
    3,303.40/4,558.70 = 1,811.45/x
  3. Step 3: Cross multiply
    3,303.40x = 4,558.70 × 1,811.45
  4. Step 4: Simplify right side
    3,303.40x = 8,257,860.26
  5. Step 5: Solve for x
    x = 8,257,860.26/3,303.40
  6. Step 6: Final answer
    x = 2,499.81

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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.