Home / 7,420.32-11,134.85-2,743.64

Finding the Fourth Proportional to 7,420.32, 11,134.85 and 2,743.64

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Solution

The fourth proportional to 7,420.32, 11,134.85 and 2,743.64 is: 4,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.32 : 11,134.85 = 2,743.64 : x
  2. Step 2: Convert to fraction form
    7,420.32/11,134.85 = 2,743.64/x
  3. Step 3: Cross multiply
    7,420.32x = 11,134.85 × 2,743.64
  4. Step 4: Simplify right side
    7,420.32x = 30,549,950.46
  5. Step 5: Solve for x
    x = 30,549,950.46/7,420.32
  6. Step 6: Final answer
    x = 4,117.07

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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.