Home / 7,115.60-10,666.10-2,958.02

Finding the Fourth Proportional to 7,115.60, 10,666.10 and 2,958.02

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Solution

The fourth proportional to 7,115.60, 10,666.10 and 2,958.02 is: 4,433.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.60 : 10,666.10 = 2,958.02 : x
  2. Step 2: Convert to fraction form
    7,115.60/10,666.10 = 2,958.02/x
  3. Step 3: Cross multiply
    7,115.60x = 10,666.10 × 2,958.02
  4. Step 4: Simplify right side
    7,115.60x = 31,550,483.79
  5. Step 5: Solve for x
    x = 31,550,483.79/7,115.60
  6. Step 6: Final answer
    x = 4,433.99

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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.