Home / 5,619.59-8,427.86-1,670.84

Finding the Fourth Proportional to 5,619.59, 8,427.86 and 1,670.84

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Solution

The fourth proportional to 5,619.59, 8,427.86 and 1,670.84 is: 2,505.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.59 : 8,427.86 = 1,670.84 : x
  2. Step 2: Convert to fraction form
    5,619.59/8,427.86 = 1,670.84/x
  3. Step 3: Cross multiply
    5,619.59x = 8,427.86 × 1,670.84
  4. Step 4: Simplify right side
    5,619.59x = 14,081,605.60
  5. Step 5: Solve for x
    x = 14,081,605.60/5,619.59
  6. Step 6: Final answer
    x = 2,505.81

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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.