Home / 7,779.20-10,735.46-4,242.44

Finding the Fourth Proportional to 7,779.20, 10,735.46 and 4,242.44

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Solution

The fourth proportional to 7,779.20, 10,735.46 and 4,242.44 is: 5,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.20 : 10,735.46 = 4,242.44 : x
  2. Step 2: Convert to fraction form
    7,779.20/10,735.46 = 4,242.44/x
  3. Step 3: Cross multiply
    7,779.20x = 10,735.46 × 4,242.44
  4. Step 4: Simplify right side
    7,779.20x = 45,544,544.92
  5. Step 5: Solve for x
    x = 45,544,544.92/7,779.20
  6. Step 6: Final answer
    x = 5,854.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.