Home / 7,319.19-10,980.32-2,389.11

Finding the Fourth Proportional to 7,319.19, 10,980.32 and 2,389.11

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Solution

The fourth proportional to 7,319.19, 10,980.32 and 2,389.11 is: 3,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.19 : 10,980.32 = 2,389.11 : x
  2. Step 2: Convert to fraction form
    7,319.19/10,980.32 = 2,389.11/x
  3. Step 3: Cross multiply
    7,319.19x = 10,980.32 × 2,389.11
  4. Step 4: Simplify right side
    7,319.19x = 26,233,180.37
  5. Step 5: Solve for x
    x = 26,233,180.37/7,319.19
  6. Step 6: Final answer
    x = 3,584.16

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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.