Home / 7,404.30-11,106.45-4,779.90

Finding the Fourth Proportional to 7,404.30, 11,106.45 and 4,779.90

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Solution

The fourth proportional to 7,404.30, 11,106.45 and 4,779.90 is: 7,169.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,404.30 : 11,106.45 = 4,779.90 : x
  2. Step 2: Convert to fraction form
    7,404.30/11,106.45 = 4,779.90/x
  3. Step 3: Cross multiply
    7,404.30x = 11,106.45 × 4,779.90
  4. Step 4: Simplify right side
    7,404.30x = 53,087,720.36
  5. Step 5: Solve for x
    x = 53,087,720.36/7,404.30
  6. Step 6: Final answer
    x = 7,169.85

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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.