Home / 7,948.40-11,917.96-2,400.08

Finding the Fourth Proportional to 7,948.40, 11,917.96 and 2,400.08

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Solution

The fourth proportional to 7,948.40, 11,917.96 and 2,400.08 is: 3,598.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.40 : 11,917.96 = 2,400.08 : x
  2. Step 2: Convert to fraction form
    7,948.40/11,917.96 = 2,400.08/x
  3. Step 3: Cross multiply
    7,948.40x = 11,917.96 × 2,400.08
  4. Step 4: Simplify right side
    7,948.40x = 28,604,045.44
  5. Step 5: Solve for x
    x = 28,604,045.44/7,948.40
  6. Step 6: Final answer
    x = 3,598.72

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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.