Home / 2,892.02-3,989.49-2,008.58

Finding the Fourth Proportional to 2,892.02, 3,989.49 and 2,008.58

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Solution

The fourth proportional to 2,892.02, 3,989.49 and 2,008.58 is: 2,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.02 : 3,989.49 = 2,008.58 : x
  2. Step 2: Convert to fraction form
    2,892.02/3,989.49 = 2,008.58/x
  3. Step 3: Cross multiply
    2,892.02x = 3,989.49 × 2,008.58
  4. Step 4: Simplify right side
    2,892.02x = 8,013,209.82
  5. Step 5: Solve for x
    x = 8,013,209.82/2,892.02
  6. Step 6: Final answer
    x = 2,770.80

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1.5x scale

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.