Home / 1,812.42-2,499.26-1,612.62

Finding the Fourth Proportional to 1,812.42, 2,499.26 and 1,612.62

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Solution

The fourth proportional to 1,812.42, 2,499.26 and 1,612.62 is: 2,223.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.42 : 2,499.26 = 1,612.62 : x
  2. Step 2: Convert to fraction form
    1,812.42/2,499.26 = 1,612.62/x
  3. Step 3: Cross multiply
    1,812.42x = 2,499.26 × 1,612.62
  4. Step 4: Simplify right side
    1,812.42x = 4,030,356.66
  5. Step 5: Solve for x
    x = 4,030,356.66/1,812.42
  6. Step 6: Final answer
    x = 2,223.74

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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.