Home / 2,379.39-3,284.23-1,671.40

Finding the Fourth Proportional to 2,379.39, 3,284.23 and 1,671.40

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Solution

The fourth proportional to 2,379.39, 3,284.23 and 1,671.40 is: 2,307.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.39 : 3,284.23 = 1,671.40 : x
  2. Step 2: Convert to fraction form
    2,379.39/3,284.23 = 1,671.40/x
  3. Step 3: Cross multiply
    2,379.39x = 3,284.23 × 1,671.40
  4. Step 4: Simplify right side
    2,379.39x = 5,489,258.28
  5. Step 5: Solve for x
    x = 5,489,258.28/2,379.39
  6. Step 6: Final answer
    x = 2,307.00

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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.