Home / 5,619.47-8,430.88-2,499.05

Finding the Fourth Proportional to 5,619.47, 8,430.88 and 2,499.05

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Solution

The fourth proportional to 5,619.47, 8,430.88 and 2,499.05 is: 3,749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.47 : 8,430.88 = 2,499.05 : x
  2. Step 2: Convert to fraction form
    5,619.47/8,430.88 = 2,499.05/x
  3. Step 3: Cross multiply
    5,619.47x = 8,430.88 × 2,499.05
  4. Step 4: Simplify right side
    5,619.47x = 21,069,205.49
  5. Step 5: Solve for x
    x = 21,069,205.49/5,619.47
  6. Step 6: Final answer
    x = 3,749.32

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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.