Home / 2,653.47-3,976.76-1,091.70

Finding the Fourth Proportional to 2,653.47, 3,976.76 and 1,091.70

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Solution

The fourth proportional to 2,653.47, 3,976.76 and 1,091.70 is: 1,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.47 : 3,976.76 = 1,091.70 : x
  2. Step 2: Convert to fraction form
    2,653.47/3,976.76 = 1,091.70/x
  3. Step 3: Cross multiply
    2,653.47x = 3,976.76 × 1,091.70
  4. Step 4: Simplify right side
    2,653.47x = 4,341,423.43
  5. Step 5: Solve for x
    x = 4,341,423.43/2,653.47
  6. Step 6: Final answer
    x = 1,636.13

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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.