Home / 2,378.64-3,282.55-1,434.48

Finding the Fourth Proportional to 2,378.64, 3,282.55 and 1,434.48

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Solution

The fourth proportional to 2,378.64, 3,282.55 and 1,434.48 is: 1,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.64 : 3,282.55 = 1,434.48 : x
  2. Step 2: Convert to fraction form
    2,378.64/3,282.55 = 1,434.48/x
  3. Step 3: Cross multiply
    2,378.64x = 3,282.55 × 1,434.48
  4. Step 4: Simplify right side
    2,378.64x = 4,708,752.32
  5. Step 5: Solve for x
    x = 4,708,752.32/2,378.64
  6. Step 6: Final answer
    x = 1,979.60

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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.