Home / 3,102.84-4,281.92-1,705.59

Finding the Fourth Proportional to 3,102.84, 4,281.92 and 1,705.59

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Solution

The fourth proportional to 3,102.84, 4,281.92 and 1,705.59 is: 2,353.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,102.84 : 4,281.92 = 1,705.59 : x
  2. Step 2: Convert to fraction form
    3,102.84/4,281.92 = 1,705.59/x
  3. Step 3: Cross multiply
    3,102.84x = 4,281.92 × 1,705.59
  4. Step 4: Simplify right side
    3,102.84x = 7,303,199.93
  5. Step 5: Solve for x
    x = 7,303,199.93/3,102.84
  6. Step 6: Final answer
    x = 2,353.71

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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.