Home / 2,812.14-4,218.74-1,080.63

Finding the Fourth Proportional to 2,812.14, 4,218.74 and 1,080.63

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Solution

The fourth proportional to 2,812.14, 4,218.74 and 1,080.63 is: 1,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.14 : 4,218.74 = 1,080.63 : x
  2. Step 2: Convert to fraction form
    2,812.14/4,218.74 = 1,080.63/x
  3. Step 3: Cross multiply
    2,812.14x = 4,218.74 × 1,080.63
  4. Step 4: Simplify right side
    2,812.14x = 4,558,897.01
  5. Step 5: Solve for x
    x = 4,558,897.01/2,812.14
  6. Step 6: Final answer
    x = 1,621.15

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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.