Home / 4,779.76-7,167.32-1,492.88

Finding the Fourth Proportional to 4,779.76, 7,167.32 and 1,492.88

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Solution

The fourth proportional to 4,779.76, 7,167.32 and 1,492.88 is: 2,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.76 : 7,167.32 = 1,492.88 : x
  2. Step 2: Convert to fraction form
    4,779.76/7,167.32 = 1,492.88/x
  3. Step 3: Cross multiply
    4,779.76x = 7,167.32 × 1,492.88
  4. Step 4: Simplify right side
    4,779.76x = 10,699,948.68
  5. Step 5: Solve for x
    x = 10,699,948.68/4,779.76
  6. Step 6: Final answer
    x = 2,238.60

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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.