Home / 3,603.12-5,407.14-1,411.86

Finding the Fourth Proportional to 3,603.12, 5,407.14 and 1,411.86

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Solution

The fourth proportional to 3,603.12, 5,407.14 and 1,411.86 is: 2,118.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,603.12 : 5,407.14 = 1,411.86 : x
  2. Step 2: Convert to fraction form
    3,603.12/5,407.14 = 1,411.86/x
  3. Step 3: Cross multiply
    3,603.12x = 5,407.14 × 1,411.86
  4. Step 4: Simplify right side
    3,603.12x = 7,634,124.68
  5. Step 5: Solve for x
    x = 7,634,124.68/3,603.12
  6. Step 6: Final answer
    x = 2,118.75

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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.