Home / 3,171.18-4,376.15-1,754.83

Finding the Fourth Proportional to 3,171.18, 4,376.15 and 1,754.83

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Solution

The fourth proportional to 3,171.18, 4,376.15 and 1,754.83 is: 2,421.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.18 : 4,376.15 = 1,754.83 : x
  2. Step 2: Convert to fraction form
    3,171.18/4,376.15 = 1,754.83/x
  3. Step 3: Cross multiply
    3,171.18x = 4,376.15 × 1,754.83
  4. Step 4: Simplify right side
    3,171.18x = 7,679,390.53
  5. Step 5: Solve for x
    x = 7,679,390.53/3,171.18
  6. Step 6: Final answer
    x = 2,421.62

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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.