Home / 4,779.36-7,165.44-4,089.60

Finding the Fourth Proportional to 4,779.36, 7,165.44 and 4,089.60

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Solution

The fourth proportional to 4,779.36, 7,165.44 and 4,089.60 is: 6,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.36 : 7,165.44 = 4,089.60 : x
  2. Step 2: Convert to fraction form
    4,779.36/7,165.44 = 4,089.60/x
  3. Step 3: Cross multiply
    4,779.36x = 7,165.44 × 4,089.60
  4. Step 4: Simplify right side
    4,779.36x = 29,303,783.42
  5. Step 5: Solve for x
    x = 29,303,783.42/4,779.36
  6. Step 6: Final answer
    x = 6,131.32

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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.