Home / 1,811.60-2,723.20-1,683.20

Finding the Fourth Proportional to 1,811.60, 2,723.20 and 1,683.20

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Solution

The fourth proportional to 1,811.60, 2,723.20 and 1,683.20 is: 2,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.60 : 2,723.20 = 1,683.20 : x
  2. Step 2: Convert to fraction form
    1,811.60/2,723.20 = 1,683.20/x
  3. Step 3: Cross multiply
    1,811.60x = 2,723.20 × 1,683.20
  4. Step 4: Simplify right side
    1,811.60x = 4,583,690.24
  5. Step 5: Solve for x
    x = 4,583,690.24/1,811.60
  6. Step 6: Final answer
    x = 2,530.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.