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Finding the Fourth Proportional to 4,672, 6,447.36 and 2,576.32

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Solution

The fourth proportional to 4,672, 6,447.36 and 2,576.32 is: 3,555.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,672 : 6,447.36 = 2,576.32 : x
  2. Step 2: Convert to fraction form
    4,672/6,447.36 = 2,576.32/x
  3. Step 3: Cross multiply
    4,672x = 6,447.36 × 2,576.32
  4. Step 4: Simplify right side
    4,672x = 16,610,462.52
  5. Step 5: Solve for x
    x = 16,610,462.52/4,672
  6. Step 6: Final answer
    x = 3,555.32

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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.