Home / 4,900.12-7,348.05-1,779.09

Finding the Fourth Proportional to 4,900.12, 7,348.05 and 1,779.09

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Solution

The fourth proportional to 4,900.12, 7,348.05 and 1,779.09 is: 2,667.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900.12 : 7,348.05 = 1,779.09 : x
  2. Step 2: Convert to fraction form
    4,900.12/7,348.05 = 1,779.09/x
  3. Step 3: Cross multiply
    4,900.12x = 7,348.05 × 1,779.09
  4. Step 4: Simplify right side
    4,900.12x = 13,072,828.35
  5. Step 5: Solve for x
    x = 13,072,828.35/4,900.12
  6. Step 6: Final answer
    x = 2,667.86

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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.