Home / 4,780.87-7,169.74-1,660.10

Finding the Fourth Proportional to 4,780.87, 7,169.74 and 1,660.10

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Solution

The fourth proportional to 4,780.87, 7,169.74 and 1,660.10 is: 2,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.87 : 7,169.74 = 1,660.10 : x
  2. Step 2: Convert to fraction form
    4,780.87/7,169.74 = 1,660.10/x
  3. Step 3: Cross multiply
    4,780.87x = 7,169.74 × 1,660.10
  4. Step 4: Simplify right side
    4,780.87x = 11,902,445.38
  5. Step 5: Solve for x
    x = 11,902,445.38/4,780.87
  6. Step 6: Final answer
    x = 2,489.60

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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.