Home / 7,180.64-10,779.60-4,277.60

Finding the Fourth Proportional to 7,180.64, 10,779.60 and 4,277.60

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Solution

The fourth proportional to 7,180.64, 10,779.60 and 4,277.60 is: 6,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.64 : 10,779.60 = 4,277.60 : x
  2. Step 2: Convert to fraction form
    7,180.64/10,779.60 = 4,277.60/x
  3. Step 3: Cross multiply
    7,180.64x = 10,779.60 × 4,277.60
  4. Step 4: Simplify right side
    7,180.64x = 46,110,816.96
  5. Step 5: Solve for x
    x = 46,110,816.96/7,180.64
  6. Step 6: Final answer
    x = 6,421.55

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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.