Home / 4,780.48-7,166.44-1,858.09

Finding the Fourth Proportional to 4,780.48, 7,166.44 and 1,858.09

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Solution

The fourth proportional to 4,780.48, 7,166.44 and 1,858.09 is: 2,785.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.48 : 7,166.44 = 1,858.09 : x
  2. Step 2: Convert to fraction form
    4,780.48/7,166.44 = 1,858.09/x
  3. Step 3: Cross multiply
    4,780.48x = 7,166.44 × 1,858.09
  4. Step 4: Simplify right side
    4,780.48x = 13,315,890.50
  5. Step 5: Solve for x
    x = 13,315,890.50/4,780.48
  6. Step 6: Final answer
    x = 2,785.47

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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.