Home / 7,322.35-10,980.79-2,390.66

Finding the Fourth Proportional to 7,322.35, 10,980.79 and 2,390.66

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Solution

The fourth proportional to 7,322.35, 10,980.79 and 2,390.66 is: 3,585.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,322.35 : 10,980.79 = 2,390.66 : x
  2. Step 2: Convert to fraction form
    7,322.35/10,980.79 = 2,390.66/x
  3. Step 3: Cross multiply
    7,322.35x = 10,980.79 × 2,390.66
  4. Step 4: Simplify right side
    7,322.35x = 26,251,384.21
  5. Step 5: Solve for x
    x = 26,251,384.21/7,322.35
  6. Step 6: Final answer
    x = 3,585.10

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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.