Home / 5,317.54-7,977.47-1,619.68

Finding the Fourth Proportional to 5,317.54, 7,977.47 and 1,619.68

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Solution

The fourth proportional to 5,317.54, 7,977.47 and 1,619.68 is: 2,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.54 : 7,977.47 = 1,619.68 : x
  2. Step 2: Convert to fraction form
    5,317.54/7,977.47 = 1,619.68/x
  3. Step 3: Cross multiply
    5,317.54x = 7,977.47 × 1,619.68
  4. Step 4: Simplify right side
    5,317.54x = 12,920,904.67
  5. Step 5: Solve for x
    x = 12,920,904.67/5,317.54
  6. Step 6: Final answer
    x = 2,429.86

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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.