Home / 4,780.51-7,173.48-1,858.42

Finding the Fourth Proportional to 4,780.51, 7,173.48 and 1,858.42

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Solution

The fourth proportional to 4,780.51, 7,173.48 and 1,858.42 is: 2,788.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.51 : 7,173.48 = 1,858.42 : x
  2. Step 2: Convert to fraction form
    4,780.51/7,173.48 = 1,858.42/x
  3. Step 3: Cross multiply
    4,780.51x = 7,173.48 × 1,858.42
  4. Step 4: Simplify right side
    4,780.51x = 13,331,338.70
  5. Step 5: Solve for x
    x = 13,331,338.70/4,780.51
  6. Step 6: Final answer
    x = 2,788.69

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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.