Home / 2,731.47-4,095.76-1,191.63

Finding the Fourth Proportional to 2,731.47, 4,095.76 and 1,191.63

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Solution

The fourth proportional to 2,731.47, 4,095.76 and 1,191.63 is: 1,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.47 : 4,095.76 = 1,191.63 : x
  2. Step 2: Convert to fraction form
    2,731.47/4,095.76 = 1,191.63/x
  3. Step 3: Cross multiply
    2,731.47x = 4,095.76 × 1,191.63
  4. Step 4: Simplify right side
    2,731.47x = 4,880,630.49
  5. Step 5: Solve for x
    x = 4,880,630.49/2,731.47
  6. Step 6: Final answer
    x = 1,786.81

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1.5x scale

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.