Home / 4,431.60-6,647.88-1,659.60

Finding the Fourth Proportional to 4,431.60, 6,647.88 and 1,659.60

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Solution

The fourth proportional to 4,431.60, 6,647.88 and 1,659.60 is: 2,489.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,431.60 : 6,647.88 = 1,659.60 : x
  2. Step 2: Convert to fraction form
    4,431.60/6,647.88 = 1,659.60/x
  3. Step 3: Cross multiply
    4,431.60x = 6,647.88 × 1,659.60
  4. Step 4: Simplify right side
    4,431.60x = 11,032,821.65
  5. Step 5: Solve for x
    x = 11,032,821.65/4,431.60
  6. Step 6: Final answer
    x = 2,489.58

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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.