Home / 7,319.49-10,979.19-2,389.11

Finding the Fourth Proportional to 7,319.49, 10,979.19 and 2,389.11

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Solution

The fourth proportional to 7,319.49, 10,979.19 and 2,389.11 is: 3,583.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.49 : 10,979.19 = 2,389.11 : x
  2. Step 2: Convert to fraction form
    7,319.49/10,979.19 = 2,389.11/x
  3. Step 3: Cross multiply
    7,319.49x = 10,979.19 × 2,389.11
  4. Step 4: Simplify right side
    7,319.49x = 26,230,492.62
  5. Step 5: Solve for x
    x = 26,230,492.62/7,319.49
  6. Step 6: Final answer
    x = 3,583.65

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1.5x scale

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.