Home / 4,780.65-7,173.69-1,858.59

Finding the Fourth Proportional to 4,780.65, 7,173.69 and 1,858.59

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Solution

The fourth proportional to 4,780.65, 7,173.69 and 1,858.59 is: 2,788.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.65 : 7,173.69 = 1,858.59 : x
  2. Step 2: Convert to fraction form
    4,780.65/7,173.69 = 1,858.59/x
  3. Step 3: Cross multiply
    4,780.65x = 7,173.69 × 1,858.59
  4. Step 4: Simplify right side
    4,780.65x = 13,332,948.50
  5. Step 5: Solve for x
    x = 13,332,948.50/4,780.65
  6. Step 6: Final answer
    x = 2,788.94

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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.