Home / 2,078.28-2,865.50-1,449.36

Finding the Fourth Proportional to 2,078.28, 2,865.50 and 1,449.36

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Solution

The fourth proportional to 2,078.28, 2,865.50 and 1,449.36 is: 1,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078.28 : 2,865.50 = 1,449.36 : x
  2. Step 2: Convert to fraction form
    2,078.28/2,865.50 = 1,449.36/x
  3. Step 3: Cross multiply
    2,078.28x = 2,865.50 × 1,449.36
  4. Step 4: Simplify right side
    2,078.28x = 4,153,141.08
  5. Step 5: Solve for x
    x = 4,153,141.08/2,078.28
  6. Step 6: Final answer
    x = 1,998.35

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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.