Home / 1,608.13-2,220.11-1,084.87

Finding the Fourth Proportional to 1,608.13, 2,220.11 and 1,084.87

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Solution

The fourth proportional to 1,608.13, 2,220.11 and 1,084.87 is: 1,497.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.13 : 2,220.11 = 1,084.87 : x
  2. Step 2: Convert to fraction form
    1,608.13/2,220.11 = 1,084.87/x
  3. Step 3: Cross multiply
    1,608.13x = 2,220.11 × 1,084.87
  4. Step 4: Simplify right side
    1,608.13x = 2,408,530.74
  5. Step 5: Solve for x
    x = 2,408,530.74/1,608.13
  6. Step 6: Final answer
    x = 1,497.72

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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.