Home / 5,618.59-8,429.13-1,670.15

Finding the Fourth Proportional to 5,618.59, 8,429.13 and 1,670.15

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Solution

The fourth proportional to 5,618.59, 8,429.13 and 1,670.15 is: 2,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.59 : 8,429.13 = 1,670.15 : x
  2. Step 2: Convert to fraction form
    5,618.59/8,429.13 = 1,670.15/x
  3. Step 3: Cross multiply
    5,618.59x = 8,429.13 × 1,670.15
  4. Step 4: Simplify right side
    5,618.59x = 14,077,932.54
  5. Step 5: Solve for x
    x = 14,077,932.54/5,618.59
  6. Step 6: Final answer
    x = 2,505.60

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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.