Home / 2,817.16-3,888.94-1,874.62

Finding the Fourth Proportional to 2,817.16, 3,888.94 and 1,874.62

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Solution

The fourth proportional to 2,817.16, 3,888.94 and 1,874.62 is: 2,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.16 : 3,888.94 = 1,874.62 : x
  2. Step 2: Convert to fraction form
    2,817.16/3,888.94 = 1,874.62/x
  3. Step 3: Cross multiply
    2,817.16x = 3,888.94 × 1,874.62
  4. Step 4: Simplify right side
    2,817.16x = 7,290,284.70
  5. Step 5: Solve for x
    x = 7,290,284.70/2,817.16
  6. Step 6: Final answer
    x = 2,587.81

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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.