Home / 3,190.47-4,779.60-2,673.78

Finding the Fourth Proportional to 3,190.47, 4,779.60 and 2,673.78

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Solution

The fourth proportional to 3,190.47, 4,779.60 and 2,673.78 is: 4,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.47 : 4,779.60 = 2,673.78 : x
  2. Step 2: Convert to fraction form
    3,190.47/4,779.60 = 2,673.78/x
  3. Step 3: Cross multiply
    3,190.47x = 4,779.60 × 2,673.78
  4. Step 4: Simplify right side
    3,190.47x = 12,779,598.89
  5. Step 5: Solve for x
    x = 12,779,598.89/3,190.47
  6. Step 6: Final answer
    x = 4,005.55

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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.