Home / 4,779.44-7,170.84-2,909.12

Finding the Fourth Proportional to 4,779.44, 7,170.84 and 2,909.12

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Solution

The fourth proportional to 4,779.44, 7,170.84 and 2,909.12 is: 4,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.44 : 7,170.84 = 2,909.12 : x
  2. Step 2: Convert to fraction form
    4,779.44/7,170.84 = 2,909.12/x
  3. Step 3: Cross multiply
    4,779.44x = 7,170.84 × 2,909.12
  4. Step 4: Simplify right side
    4,779.44x = 20,860,834.06
  5. Step 5: Solve for x
    x = 20,860,834.06/4,779.44
  6. Step 6: Final answer
    x = 4,364.70

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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.