Home / 7,319.28-10,977.81-2,388.90

Finding the Fourth Proportional to 7,319.28, 10,977.81 and 2,388.90

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Solution

The fourth proportional to 7,319.28, 10,977.81 and 2,388.90 is: 3,582.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.28 : 10,977.81 = 2,388.90 : x
  2. Step 2: Convert to fraction form
    7,319.28/10,977.81 = 2,388.90/x
  3. Step 3: Cross multiply
    7,319.28x = 10,977.81 × 2,388.90
  4. Step 4: Simplify right side
    7,319.28x = 26,224,890.31
  5. Step 5: Solve for x
    x = 26,224,890.31/7,319.28
  6. Step 6: Final answer
    x = 3,582.99

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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.