Home / 2,049.93-2,827.31-1,420.70

Finding the Fourth Proportional to 2,049.93, 2,827.31 and 1,420.70

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Solution

The fourth proportional to 2,049.93, 2,827.31 and 1,420.70 is: 1,959.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.93 : 2,827.31 = 1,420.70 : x
  2. Step 2: Convert to fraction form
    2,049.93/2,827.31 = 1,420.70/x
  3. Step 3: Cross multiply
    2,049.93x = 2,827.31 × 1,420.70
  4. Step 4: Simplify right side
    2,049.93x = 4,016,738.08
  5. Step 5: Solve for x
    x = 4,016,738.08/2,049.93
  6. Step 6: Final answer
    x = 1,959.45

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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.