Home / 2,091.04-3,137.58-1,478.68

Finding the Fourth Proportional to 2,091.04, 3,137.58 and 1,478.68

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Solution

The fourth proportional to 2,091.04, 3,137.58 and 1,478.68 is: 2,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091.04 : 3,137.58 = 1,478.68 : x
  2. Step 2: Convert to fraction form
    2,091.04/3,137.58 = 1,478.68/x
  3. Step 3: Cross multiply
    2,091.04x = 3,137.58 × 1,478.68
  4. Step 4: Simplify right side
    2,091.04x = 4,639,476.79
  5. Step 5: Solve for x
    x = 4,639,476.79/2,091.04
  6. Step 6: Final answer
    x = 2,218.74

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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.