Home / 7,966.10-11,948.80-2,419.32

Finding the Fourth Proportional to 7,966.10, 11,948.80 and 2,419.32

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Solution

The fourth proportional to 7,966.10, 11,948.80 and 2,419.32 is: 3,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.10 : 11,948.80 = 2,419.32 : x
  2. Step 2: Convert to fraction form
    7,966.10/11,948.80 = 2,419.32/x
  3. Step 3: Cross multiply
    7,966.10x = 11,948.80 × 2,419.32
  4. Step 4: Simplify right side
    7,966.10x = 28,907,970.82
  5. Step 5: Solve for x
    x = 28,907,970.82/7,966.10
  6. Step 6: Final answer
    x = 3,628.87

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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.