Home / 4,305.21-6,458.71-1,385.56

Finding the Fourth Proportional to 4,305.21, 6,458.71 and 1,385.56

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Solution

The fourth proportional to 4,305.21, 6,458.71 and 1,385.56 is: 2,078.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.21 : 6,458.71 = 1,385.56 : x
  2. Step 2: Convert to fraction form
    4,305.21/6,458.71 = 1,385.56/x
  3. Step 3: Cross multiply
    4,305.21x = 6,458.71 × 1,385.56
  4. Step 4: Simplify right side
    4,305.21x = 8,948,930.23
  5. Step 5: Solve for x
    x = 8,948,930.23/4,305.21
  6. Step 6: Final answer
    x = 2,078.63

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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.