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Finding the Fourth Proportional to 5,334.40, 8,005.20 and 2,411.20

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Solution

The fourth proportional to 5,334.40, 8,005.20 and 2,411.20 is: 3,618.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,334.40 : 8,005.20 = 2,411.20 : x
  2. Step 2: Convert to fraction form
    5,334.40/8,005.20 = 2,411.20/x
  3. Step 3: Cross multiply
    5,334.40x = 8,005.20 × 2,411.20
  4. Step 4: Simplify right side
    5,334.40x = 19,302,138.24
  5. Step 5: Solve for x
    x = 19,302,138.24/5,334.40
  6. Step 6: Final answer
    x = 3,618.43

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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.