Home / 2,817.84-3,888.77-1,623.01

Finding the Fourth Proportional to 2,817.84, 3,888.77 and 1,623.01

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Solution

The fourth proportional to 2,817.84, 3,888.77 and 1,623.01 is: 2,239.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.84 : 3,888.77 = 1,623.01 : x
  2. Step 2: Convert to fraction form
    2,817.84/3,888.77 = 1,623.01/x
  3. Step 3: Cross multiply
    2,817.84x = 3,888.77 × 1,623.01
  4. Step 4: Simplify right side
    2,817.84x = 6,311,504.48
  5. Step 5: Solve for x
    x = 6,311,504.48/2,817.84
  6. Step 6: Final answer
    x = 2,239.84

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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.