Home / 4,305.30-6,458.82-1,385.64

Finding the Fourth Proportional to 4,305.30, 6,458.82 and 1,385.64

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Solution

The fourth proportional to 4,305.30, 6,458.82 and 1,385.64 is: 2,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.30 : 6,458.82 = 1,385.64 : x
  2. Step 2: Convert to fraction form
    4,305.30/6,458.82 = 1,385.64/x
  3. Step 3: Cross multiply
    4,305.30x = 6,458.82 × 1,385.64
  4. Step 4: Simplify right side
    4,305.30x = 8,949,599.34
  5. Step 5: Solve for x
    x = 8,949,599.34/4,305.30
  6. Step 6: Final answer
    x = 2,078.74

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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.