Home / 1,816.20-2,506.08-1,019.55

Finding the Fourth Proportional to 1,816.20, 2,506.08 and 1,019.55

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Solution

The fourth proportional to 1,816.20, 2,506.08 and 1,019.55 is: 1,406.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.20 : 2,506.08 = 1,019.55 : x
  2. Step 2: Convert to fraction form
    1,816.20/2,506.08 = 1,019.55/x
  3. Step 3: Cross multiply
    1,816.20x = 2,506.08 × 1,019.55
  4. Step 4: Simplify right side
    1,816.20x = 2,555,073.86
  5. Step 5: Solve for x
    x = 2,555,073.86/1,816.20
  6. Step 6: Final answer
    x = 1,406.82

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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.