Home / 4,285.38-6,421.86-2,091.63

Finding the Fourth Proportional to 4,285.38, 6,421.86 and 2,091.63

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Solution

The fourth proportional to 4,285.38, 6,421.86 and 2,091.63 is: 3,134.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.38 : 6,421.86 = 2,091.63 : x
  2. Step 2: Convert to fraction form
    4,285.38/6,421.86 = 2,091.63/x
  3. Step 3: Cross multiply
    4,285.38x = 6,421.86 × 2,091.63
  4. Step 4: Simplify right side
    4,285.38x = 13,432,155.03
  5. Step 5: Solve for x
    x = 13,432,155.03/4,285.38
  6. Step 6: Final answer
    x = 3,134.41

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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.