Home / 2,033.42-2,806.65-1,287.74

Finding the Fourth Proportional to 2,033.42, 2,806.65 and 1,287.74

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Solution

The fourth proportional to 2,033.42, 2,806.65 and 1,287.74 is: 1,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,033.42 : 2,806.65 = 1,287.74 : x
  2. Step 2: Convert to fraction form
    2,033.42/2,806.65 = 1,287.74/x
  3. Step 3: Cross multiply
    2,033.42x = 2,806.65 × 1,287.74
  4. Step 4: Simplify right side
    2,033.42x = 3,614,235.47
  5. Step 5: Solve for x
    x = 3,614,235.47/2,033.42
  6. Step 6: Final answer
    x = 1,777.42

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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.