Home / 6,411.54-8,842.38-4,172.58

Finding the Fourth Proportional to 6,411.54, 8,842.38 and 4,172.58

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Solution

The fourth proportional to 6,411.54, 8,842.38 and 4,172.58 is: 5,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,411.54 : 8,842.38 = 4,172.58 : x
  2. Step 2: Convert to fraction form
    6,411.54/8,842.38 = 4,172.58/x
  3. Step 3: Cross multiply
    6,411.54x = 8,842.38 × 4,172.58
  4. Step 4: Simplify right side
    6,411.54x = 36,895,537.94
  5. Step 5: Solve for x
    x = 36,895,537.94/6,411.54
  6. Step 6: Final answer
    x = 5,754.55

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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.