Home / 1,824.39-2,742.66-1,689.12

Finding the Fourth Proportional to 1,824.39, 2,742.66 and 1,689.12

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Solution

The fourth proportional to 1,824.39, 2,742.66 and 1,689.12 is: 2,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,824.39 : 2,742.66 = 1,689.12 : x
  2. Step 2: Convert to fraction form
    1,824.39/2,742.66 = 1,689.12/x
  3. Step 3: Cross multiply
    1,824.39x = 2,742.66 × 1,689.12
  4. Step 4: Simplify right side
    1,824.39x = 4,632,681.86
  5. Step 5: Solve for x
    x = 4,632,681.86/1,824.39
  6. Step 6: Final answer
    x = 2,539.30

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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.