Home / 1,814.24-2,503.50-1,115.64

Finding the Fourth Proportional to 1,814.24, 2,503.50 and 1,115.64

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Solution

The fourth proportional to 1,814.24, 2,503.50 and 1,115.64 is: 1,539.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.24 : 2,503.50 = 1,115.64 : x
  2. Step 2: Convert to fraction form
    1,814.24/2,503.50 = 1,115.64/x
  3. Step 3: Cross multiply
    1,814.24x = 2,503.50 × 1,115.64
  4. Step 4: Simplify right side
    1,814.24x = 2,793,004.74
  5. Step 5: Solve for x
    x = 2,793,004.74/1,814.24
  6. Step 6: Final answer
    x = 1,539.49

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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.