Home / 2,869.24-3,959.78-1,674.60

Finding the Fourth Proportional to 2,869.24, 3,959.78 and 1,674.60

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Solution

The fourth proportional to 2,869.24, 3,959.78 and 1,674.60 is: 2,311.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.24 : 3,959.78 = 1,674.60 : x
  2. Step 2: Convert to fraction form
    2,869.24/3,959.78 = 1,674.60/x
  3. Step 3: Cross multiply
    2,869.24x = 3,959.78 × 1,674.60
  4. Step 4: Simplify right side
    2,869.24x = 6,631,047.59
  5. Step 5: Solve for x
    x = 6,631,047.59/2,869.24
  6. Step 6: Final answer
    x = 2,311.08

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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.