Home / 7,320.50-10,982.10-2,938.40

Finding the Fourth Proportional to 7,320.50, 10,982.10 and 2,938.40

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Solution

The fourth proportional to 7,320.50, 10,982.10 and 2,938.40 is: 4,408.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.50 : 10,982.10 = 2,938.40 : x
  2. Step 2: Convert to fraction form
    7,320.50/10,982.10 = 2,938.40/x
  3. Step 3: Cross multiply
    7,320.50x = 10,982.10 × 2,938.40
  4. Step 4: Simplify right side
    7,320.50x = 32,269,802.64
  5. Step 5: Solve for x
    x = 32,269,802.64/7,320.50
  6. Step 6: Final answer
    x = 4,408.14

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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.