Home / 2,322.64-3,206.76-1,439.74

Finding the Fourth Proportional to 2,322.64, 3,206.76 and 1,439.74

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Solution

The fourth proportional to 2,322.64, 3,206.76 and 1,439.74 is: 1,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,322.64 : 3,206.76 = 1,439.74 : x
  2. Step 2: Convert to fraction form
    2,322.64/3,206.76 = 1,439.74/x
  3. Step 3: Cross multiply
    2,322.64x = 3,206.76 × 1,439.74
  4. Step 4: Simplify right side
    2,322.64x = 4,616,900.64
  5. Step 5: Solve for x
    x = 4,616,900.64/2,322.64
  6. Step 6: Final answer
    x = 1,987.78

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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.