Home / 2,378.39-3,282.20-1,434.24

Finding the Fourth Proportional to 2,378.39, 3,282.20 and 1,434.24

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Solution

The fourth proportional to 2,378.39, 3,282.20 and 1,434.24 is: 1,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.39 : 3,282.20 = 1,434.24 : x
  2. Step 2: Convert to fraction form
    2,378.39/3,282.20 = 1,434.24/x
  3. Step 3: Cross multiply
    2,378.39x = 3,282.20 × 1,434.24
  4. Step 4: Simplify right side
    2,378.39x = 4,707,455.36
  5. Step 5: Solve for x
    x = 4,707,455.36/2,378.39
  6. Step 6: Final answer
    x = 1,979.27

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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.