Home / 7,488.40-11,232.60-2,556.40

Finding the Fourth Proportional to 7,488.40, 11,232.60 and 2,556.40

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Solution

The fourth proportional to 7,488.40, 11,232.60 and 2,556.40 is: 3,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,488.40 : 11,232.60 = 2,556.40 : x
  2. Step 2: Convert to fraction form
    7,488.40/11,232.60 = 2,556.40/x
  3. Step 3: Cross multiply
    7,488.40x = 11,232.60 × 2,556.40
  4. Step 4: Simplify right side
    7,488.40x = 28,715,018.64
  5. Step 5: Solve for x
    x = 28,715,018.64/7,488.40
  6. Step 6: Final answer
    x = 3,834.60

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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.