Home / 3,528.10-4,865.85-2,645.86

Finding the Fourth Proportional to 3,528.10, 4,865.85 and 2,645.86

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Solution

The fourth proportional to 3,528.10, 4,865.85 and 2,645.86 is: 3,649.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.10 : 4,865.85 = 2,645.86 : x
  2. Step 2: Convert to fraction form
    3,528.10/4,865.85 = 2,645.86/x
  3. Step 3: Cross multiply
    3,528.10x = 4,865.85 × 2,645.86
  4. Step 4: Simplify right side
    3,528.10x = 12,874,357.88
  5. Step 5: Solve for x
    x = 12,874,357.88/3,528.10
  6. Step 6: Final answer
    x = 3,649.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.