Home / 7,430.64-11,140.68-3,730.20

Finding the Fourth Proportional to 7,430.64, 11,140.68 and 3,730.20

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Solution

The fourth proportional to 7,430.64, 11,140.68 and 3,730.20 is: 5,592.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.64 : 11,140.68 = 3,730.20 : x
  2. Step 2: Convert to fraction form
    7,430.64/11,140.68 = 3,730.20/x
  3. Step 3: Cross multiply
    7,430.64x = 11,140.68 × 3,730.20
  4. Step 4: Simplify right side
    7,430.64x = 41,556,964.54
  5. Step 5: Solve for x
    x = 41,556,964.54/7,430.64
  6. Step 6: Final answer
    x = 5,592.65

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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.