Home / 7,328.58-10,989.18-2,942.40

Finding the Fourth Proportional to 7,328.58, 10,989.18 and 2,942.40

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Solution

The fourth proportional to 7,328.58, 10,989.18 and 2,942.40 is: 4,412.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.58 : 10,989.18 = 2,942.40 : x
  2. Step 2: Convert to fraction form
    7,328.58/10,989.18 = 2,942.40/x
  3. Step 3: Cross multiply
    7,328.58x = 10,989.18 × 2,942.40
  4. Step 4: Simplify right side
    7,328.58x = 32,334,563.23
  5. Step 5: Solve for x
    x = 32,334,563.23/7,328.58
  6. Step 6: Final answer
    x = 4,412.12

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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.