Home / 3,411.74-4,708.58-1,920.02

Finding the Fourth Proportional to 3,411.74, 4,708.58 and 1,920.02

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Solution

The fourth proportional to 3,411.74, 4,708.58 and 1,920.02 is: 2,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.74 : 4,708.58 = 1,920.02 : x
  2. Step 2: Convert to fraction form
    3,411.74/4,708.58 = 1,920.02/x
  3. Step 3: Cross multiply
    3,411.74x = 4,708.58 × 1,920.02
  4. Step 4: Simplify right side
    3,411.74x = 9,040,567.77
  5. Step 5: Solve for x
    x = 9,040,567.77/3,411.74
  6. Step 6: Final answer
    x = 2,649.84

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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.