Home / 7,319.22-10,980.45-3,421.50

Finding the Fourth Proportional to 7,319.22, 10,980.45 and 3,421.50

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Solution

The fourth proportional to 7,319.22, 10,980.45 and 3,421.50 is: 5,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.22 : 10,980.45 = 3,421.50 : x
  2. Step 2: Convert to fraction form
    7,319.22/10,980.45 = 3,421.50/x
  3. Step 3: Cross multiply
    7,319.22x = 10,980.45 × 3,421.50
  4. Step 4: Simplify right side
    7,319.22x = 37,569,609.68
  5. Step 5: Solve for x
    x = 37,569,609.68/7,319.22
  6. Step 6: Final answer
    x = 5,133.01

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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.