Home / 2,730.47-3,769.65-2,099.77

Finding the Fourth Proportional to 2,730.47, 3,769.65 and 2,099.77

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Solution

The fourth proportional to 2,730.47, 3,769.65 and 2,099.77 is: 2,898.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.47 : 3,769.65 = 2,099.77 : x
  2. Step 2: Convert to fraction form
    2,730.47/3,769.65 = 2,099.77/x
  3. Step 3: Cross multiply
    2,730.47x = 3,769.65 × 2,099.77
  4. Step 4: Simplify right side
    2,730.47x = 7,915,397.98
  5. Step 5: Solve for x
    x = 7,915,397.98/2,730.47
  6. Step 6: Final answer
    x = 2,898.91

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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.