Home / 4,780.55-7,168.19-1,660.30

Finding the Fourth Proportional to 4,780.55, 7,168.19 and 1,660.30

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Solution

The fourth proportional to 4,780.55, 7,168.19 and 1,660.30 is: 2,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.55 : 7,168.19 = 1,660.30 : x
  2. Step 2: Convert to fraction form
    4,780.55/7,168.19 = 1,660.30/x
  3. Step 3: Cross multiply
    4,780.55x = 7,168.19 × 1,660.30
  4. Step 4: Simplify right side
    4,780.55x = 11,901,319.64
  5. Step 5: Solve for x
    x = 11,901,319.64/4,780.55
  6. Step 6: Final answer
    x = 2,489.53

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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.