Home / 4,285.74-6,429.57-1,820.64

Finding the Fourth Proportional to 4,285.74, 6,429.57 and 1,820.64

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Solution

The fourth proportional to 4,285.74, 6,429.57 and 1,820.64 is: 2,731.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.74 : 6,429.57 = 1,820.64 : x
  2. Step 2: Convert to fraction form
    4,285.74/6,429.57 = 1,820.64/x
  3. Step 3: Cross multiply
    4,285.74x = 6,429.57 × 1,820.64
  4. Step 4: Simplify right side
    4,285.74x = 11,705,932.32
  5. Step 5: Solve for x
    x = 11,705,932.32/4,285.74
  6. Step 6: Final answer
    x = 2,731.37

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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.