Home / 7,125.39-10,690.05-2,967.35

Finding the Fourth Proportional to 7,125.39, 10,690.05 and 2,967.35

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Solution

The fourth proportional to 7,125.39, 10,690.05 and 2,967.35 is: 4,451.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.39 : 10,690.05 = 2,967.35 : x
  2. Step 2: Convert to fraction form
    7,125.39/10,690.05 = 2,967.35/x
  3. Step 3: Cross multiply
    7,125.39x = 10,690.05 × 2,967.35
  4. Step 4: Simplify right side
    7,125.39x = 31,721,119.87
  5. Step 5: Solve for x
    x = 31,721,119.87/7,125.39
  6. Step 6: Final answer
    x = 4,451.84

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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.