Home / 2,928.60-4,394.72-1,955.40

Finding the Fourth Proportional to 2,928.60, 4,394.72 and 1,955.40

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Solution

The fourth proportional to 2,928.60, 4,394.72 and 1,955.40 is: 2,934.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.60 : 4,394.72 = 1,955.40 : x
  2. Step 2: Convert to fraction form
    2,928.60/4,394.72 = 1,955.40/x
  3. Step 3: Cross multiply
    2,928.60x = 4,394.72 × 1,955.40
  4. Step 4: Simplify right side
    2,928.60x = 8,593,435.49
  5. Step 5: Solve for x
    x = 8,593,435.49/2,928.60
  6. Step 6: Final answer
    x = 2,934.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.