Home / 4,458.87-6,688.31-2,148.75

Finding the Fourth Proportional to 4,458.87, 6,688.31 and 2,148.75

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Solution

The fourth proportional to 4,458.87, 6,688.31 and 2,148.75 is: 3,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,458.87 : 6,688.31 = 2,148.75 : x
  2. Step 2: Convert to fraction form
    4,458.87/6,688.31 = 2,148.75/x
  3. Step 3: Cross multiply
    4,458.87x = 6,688.31 × 2,148.75
  4. Step 4: Simplify right side
    4,458.87x = 14,371,495.37
  5. Step 5: Solve for x
    x = 14,371,495.37/4,458.87
  6. Step 6: Final answer
    x = 3,223.13

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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.