Home / 3,471.13-5,208.74-1,281.40

Finding the Fourth Proportional to 3,471.13, 5,208.74 and 1,281.40

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Solution

The fourth proportional to 3,471.13, 5,208.74 and 1,281.40 is: 1,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.13 : 5,208.74 = 1,281.40 : x
  2. Step 2: Convert to fraction form
    3,471.13/5,208.74 = 1,281.40/x
  3. Step 3: Cross multiply
    3,471.13x = 5,208.74 × 1,281.40
  4. Step 4: Simplify right side
    3,471.13x = 6,674,479.44
  5. Step 5: Solve for x
    x = 6,674,479.44/3,471.13
  6. Step 6: Final answer
    x = 1,922.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.