Home / 2,639.64-3,645.69-1,798.89

Finding the Fourth Proportional to 2,639.64, 3,645.69 and 1,798.89

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Solution

The fourth proportional to 2,639.64, 3,645.69 and 1,798.89 is: 2,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.64 : 3,645.69 = 1,798.89 : x
  2. Step 2: Convert to fraction form
    2,639.64/3,645.69 = 1,798.89/x
  3. Step 3: Cross multiply
    2,639.64x = 3,645.69 × 1,798.89
  4. Step 4: Simplify right side
    2,639.64x = 6,558,195.28
  5. Step 5: Solve for x
    x = 6,558,195.28/2,639.64
  6. Step 6: Final answer
    x = 2,484.50

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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.