Home / 2,960.28-4,440.90-1,421.28

Finding the Fourth Proportional to 2,960.28, 4,440.90 and 1,421.28

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Solution

The fourth proportional to 2,960.28, 4,440.90 and 1,421.28 is: 2,132.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.28 : 4,440.90 = 1,421.28 : x
  2. Step 2: Convert to fraction form
    2,960.28/4,440.90 = 1,421.28/x
  3. Step 3: Cross multiply
    2,960.28x = 4,440.90 × 1,421.28
  4. Step 4: Simplify right side
    2,960.28x = 6,311,762.35
  5. Step 5: Solve for x
    x = 6,311,762.35/2,960.28
  6. Step 6: Final answer
    x = 2,132.15

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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.