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Finding the Fourth Proportional to 4,380, 6,045.12 and 2,516.64

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Solution

The fourth proportional to 4,380, 6,045.12 and 2,516.64 is: 3,473.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380 : 6,045.12 = 2,516.64 : x
  2. Step 2: Convert to fraction form
    4,380/6,045.12 = 2,516.64/x
  3. Step 3: Cross multiply
    4,380x = 6,045.12 × 2,516.64
  4. Step 4: Simplify right side
    4,380x = 15,213,390.80
  5. Step 5: Solve for x
    x = 15,213,390.80/4,380
  6. Step 6: Final answer
    x = 3,473.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.