Home / 5,603.12-8,404.36-1,443.28

Finding the Fourth Proportional to 5,603.12, 8,404.36 and 1,443.28

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Solution

The fourth proportional to 5,603.12, 8,404.36 and 1,443.28 is: 2,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,603.12 : 8,404.36 = 1,443.28 : x
  2. Step 2: Convert to fraction form
    5,603.12/8,404.36 = 1,443.28/x
  3. Step 3: Cross multiply
    5,603.12x = 8,404.36 × 1,443.28
  4. Step 4: Simplify right side
    5,603.12x = 12,129,844.70
  5. Step 5: Solve for x
    x = 12,129,844.70/5,603.12
  6. Step 6: Final answer
    x = 2,164.84

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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.