Home / 2,109.64-2,911.58-1,584.76

Finding the Fourth Proportional to 2,109.64, 2,911.58 and 1,584.76

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Solution

The fourth proportional to 2,109.64, 2,911.58 and 1,584.76 is: 2,187.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.64 : 2,911.58 = 1,584.76 : x
  2. Step 2: Convert to fraction form
    2,109.64/2,911.58 = 1,584.76/x
  3. Step 3: Cross multiply
    2,109.64x = 2,911.58 × 1,584.76
  4. Step 4: Simplify right side
    2,109.64x = 4,614,144.92
  5. Step 5: Solve for x
    x = 4,614,144.92/2,109.64
  6. Step 6: Final answer
    x = 2,187.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.