Home / 7,318.86-10,980.57-2,389.50

Finding the Fourth Proportional to 7,318.86, 10,980.57 and 2,389.50

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Solution

The fourth proportional to 7,318.86, 10,980.57 and 2,389.50 is: 3,584.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.86 : 10,980.57 = 2,389.50 : x
  2. Step 2: Convert to fraction form
    7,318.86/10,980.57 = 2,389.50/x
  3. Step 3: Cross multiply
    7,318.86x = 10,980.57 × 2,389.50
  4. Step 4: Simplify right side
    7,318.86x = 26,238,072.02
  5. Step 5: Solve for x
    x = 26,238,072.02/7,318.86
  6. Step 6: Final answer
    x = 3,584.99

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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.