Home / 1,873.28-2,582.70-1,282.80

Finding the Fourth Proportional to 1,873.28, 2,582.70 and 1,282.80

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Solution

The fourth proportional to 1,873.28, 2,582.70 and 1,282.80 is: 1,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.28 : 2,582.70 = 1,282.80 : x
  2. Step 2: Convert to fraction form
    1,873.28/2,582.70 = 1,282.80/x
  3. Step 3: Cross multiply
    1,873.28x = 2,582.70 × 1,282.80
  4. Step 4: Simplify right side
    1,873.28x = 3,313,087.56
  5. Step 5: Solve for x
    x = 3,313,087.56/1,873.28
  6. Step 6: Final answer
    x = 1,768.60

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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.