Home / 2,829.58-3,904.64-1,709.86

Finding the Fourth Proportional to 2,829.58, 3,904.64 and 1,709.86

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Solution

The fourth proportional to 2,829.58, 3,904.64 and 1,709.86 is: 2,359.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.58 : 3,904.64 = 1,709.86 : x
  2. Step 2: Convert to fraction form
    2,829.58/3,904.64 = 1,709.86/x
  3. Step 3: Cross multiply
    2,829.58x = 3,904.64 × 1,709.86
  4. Step 4: Simplify right side
    2,829.58x = 6,676,387.75
  5. Step 5: Solve for x
    x = 6,676,387.75/2,829.58
  6. Step 6: Final answer
    x = 2,359.50

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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.