Home / 4,758.41-7,145.79-2,920.32

Finding the Fourth Proportional to 4,758.41, 7,145.79 and 2,920.32

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Solution

The fourth proportional to 4,758.41, 7,145.79 and 2,920.32 is: 4,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,758.41 : 7,145.79 = 2,920.32 : x
  2. Step 2: Convert to fraction form
    4,758.41/7,145.79 = 2,920.32/x
  3. Step 3: Cross multiply
    4,758.41x = 7,145.79 × 2,920.32
  4. Step 4: Simplify right side
    4,758.41x = 20,867,993.45
  5. Step 5: Solve for x
    x = 20,867,993.45/4,758.41
  6. Step 6: Final answer
    x = 4,385.50

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1.5x scale

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.