Home / 2,065.40-2,849.26-1,356.96

Finding the Fourth Proportional to 2,065.40, 2,849.26 and 1,356.96

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Solution

The fourth proportional to 2,065.40, 2,849.26 and 1,356.96 is: 1,871.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.40 : 2,849.26 = 1,356.96 : x
  2. Step 2: Convert to fraction form
    2,065.40/2,849.26 = 1,356.96/x
  3. Step 3: Cross multiply
    2,065.40x = 2,849.26 × 1,356.96
  4. Step 4: Simplify right side
    2,065.40x = 3,866,331.85
  5. Step 5: Solve for x
    x = 3,866,331.85/2,065.40
  6. Step 6: Final answer
    x = 1,871.95

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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.