Home / 2,812.02-3,881.61-2,287.14

Finding the Fourth Proportional to 2,812.02, 3,881.61 and 2,287.14

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Solution

The fourth proportional to 2,812.02, 3,881.61 and 2,287.14 is: 3,157.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.02 : 3,881.61 = 2,287.14 : x
  2. Step 2: Convert to fraction form
    2,812.02/3,881.61 = 2,287.14/x
  3. Step 3: Cross multiply
    2,812.02x = 3,881.61 × 2,287.14
  4. Step 4: Simplify right side
    2,812.02x = 8,877,785.50
  5. Step 5: Solve for x
    x = 8,877,785.50/2,812.02
  6. Step 6: Final answer
    x = 3,157.08

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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.