Home / 7,160.44-9,872.28-4,638.12

Finding the Fourth Proportional to 7,160.44, 9,872.28 and 4,638.12

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Solution

The fourth proportional to 7,160.44, 9,872.28 and 4,638.12 is: 6,394.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.44 : 9,872.28 = 4,638.12 : x
  2. Step 2: Convert to fraction form
    7,160.44/9,872.28 = 4,638.12/x
  3. Step 3: Cross multiply
    7,160.44x = 9,872.28 × 4,638.12
  4. Step 4: Simplify right side
    7,160.44x = 45,788,819.31
  5. Step 5: Solve for x
    x = 45,788,819.31/7,160.44
  6. Step 6: Final answer
    x = 6,394.69

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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.