Home / 3,258.40-4,495.41-2,139.94

Finding the Fourth Proportional to 3,258.40, 4,495.41 and 2,139.94

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Solution

The fourth proportional to 3,258.40, 4,495.41 and 2,139.94 is: 2,952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.40 : 4,495.41 = 2,139.94 : x
  2. Step 2: Convert to fraction form
    3,258.40/4,495.41 = 2,139.94/x
  3. Step 3: Cross multiply
    3,258.40x = 4,495.41 × 2,139.94
  4. Step 4: Simplify right side
    3,258.40x = 9,619,913.29
  5. Step 5: Solve for x
    x = 9,619,913.29/3,258.40
  6. Step 6: Final answer
    x = 2,952.34

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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.