Home / 1,842.40-2,539.92-1,282.69

Finding the Fourth Proportional to 1,842.40, 2,539.92 and 1,282.69

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Solution

The fourth proportional to 1,842.40, 2,539.92 and 1,282.69 is: 1,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.40 : 2,539.92 = 1,282.69 : x
  2. Step 2: Convert to fraction form
    1,842.40/2,539.92 = 1,282.69/x
  3. Step 3: Cross multiply
    1,842.40x = 2,539.92 × 1,282.69
  4. Step 4: Simplify right side
    1,842.40x = 3,257,929.98
  5. Step 5: Solve for x
    x = 3,257,929.98/1,842.40
  6. Step 6: Final answer
    x = 1,768.31

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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.