Home / 5,272.26-7,909.60-1,809.50

Finding the Fourth Proportional to 5,272.26, 7,909.60 and 1,809.50

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Solution

The fourth proportional to 5,272.26, 7,909.60 and 1,809.50 is: 2,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.26 : 7,909.60 = 1,809.50 : x
  2. Step 2: Convert to fraction form
    5,272.26/7,909.60 = 1,809.50/x
  3. Step 3: Cross multiply
    5,272.26x = 7,909.60 × 1,809.50
  4. Step 4: Simplify right side
    5,272.26x = 14,312,421.20
  5. Step 5: Solve for x
    x = 14,312,421.20/5,272.26
  6. Step 6: Final answer
    x = 2,714.67

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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.