Home / 7,161.48-10,740.60-2,779.92

Finding the Fourth Proportional to 7,161.48, 10,740.60 and 2,779.92

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Solution

The fourth proportional to 7,161.48, 10,740.60 and 2,779.92 is: 4,169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.48 : 10,740.60 = 2,779.92 : x
  2. Step 2: Convert to fraction form
    7,161.48/10,740.60 = 2,779.92/x
  3. Step 3: Cross multiply
    7,161.48x = 10,740.60 × 2,779.92
  4. Step 4: Simplify right side
    7,161.48x = 29,858,008.75
  5. Step 5: Solve for x
    x = 29,858,008.75/7,161.48
  6. Step 6: Final answer
    x = 4,169.25

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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.