Home / 7,322.20-10,984.40-2,390.64

Finding the Fourth Proportional to 7,322.20, 10,984.40 and 2,390.64

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Solution

The fourth proportional to 7,322.20, 10,984.40 and 2,390.64 is: 3,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.20 : 10,984.40 = 2,390.64 : x
  2. Step 2: Convert to fraction form
    7,322.20/10,984.40 = 2,390.64/x
  3. Step 3: Cross multiply
    7,322.20x = 10,984.40 × 2,390.64
  4. Step 4: Simplify right side
    7,322.20x = 26,259,746.02
  5. Step 5: Solve for x
    x = 26,259,746.02/7,322.20
  6. Step 6: Final answer
    x = 3,586.32

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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.