Home / 5,619.14-8,430.28-2,456.86

Finding the Fourth Proportional to 5,619.14, 8,430.28 and 2,456.86

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Solution

The fourth proportional to 5,619.14, 8,430.28 and 2,456.86 is: 3,685.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.14 : 8,430.28 = 2,456.86 : x
  2. Step 2: Convert to fraction form
    5,619.14/8,430.28 = 2,456.86/x
  3. Step 3: Cross multiply
    5,619.14x = 8,430.28 × 2,456.86
  4. Step 4: Simplify right side
    5,619.14x = 20,712,017.72
  5. Step 5: Solve for x
    x = 20,712,017.72/5,619.14
  6. Step 6: Final answer
    x = 3,685.98

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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.