Home / 2,731.86-4,095.63-1,172.88

Finding the Fourth Proportional to 2,731.86, 4,095.63 and 1,172.88

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Solution

The fourth proportional to 2,731.86, 4,095.63 and 1,172.88 is: 1,758.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.86 : 4,095.63 = 1,172.88 : x
  2. Step 2: Convert to fraction form
    2,731.86/4,095.63 = 1,172.88/x
  3. Step 3: Cross multiply
    2,731.86x = 4,095.63 × 1,172.88
  4. Step 4: Simplify right side
    2,731.86x = 4,803,682.51
  5. Step 5: Solve for x
    x = 4,803,682.51/2,731.86
  6. Step 6: Final answer
    x = 1,758.39

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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.