Home / 3,595.40-4,961.68-2,178.64

Finding the Fourth Proportional to 3,595.40, 4,961.68 and 2,178.64

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Solution

The fourth proportional to 3,595.40, 4,961.68 and 2,178.64 is: 3,006.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,595.40 : 4,961.68 = 2,178.64 : x
  2. Step 2: Convert to fraction form
    3,595.40/4,961.68 = 2,178.64/x
  3. Step 3: Cross multiply
    3,595.40x = 4,961.68 × 2,178.64
  4. Step 4: Simplify right side
    3,595.40x = 10,809,714.52
  5. Step 5: Solve for x
    x = 10,809,714.52/3,595.40
  6. Step 6: Final answer
    x = 3,006.54

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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.