Home / 1,556.45-2,334.69-619.62

Finding the Fourth Proportional to 1,556.45, 2,334.69 and 619.62

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Solution

The fourth proportional to 1,556.45, 2,334.69 and 619.62 is: 929.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.45 : 2,334.69 = 619.62 : x
  2. Step 2: Convert to fraction form
    1,556.45/2,334.69 = 619.62/x
  3. Step 3: Cross multiply
    1,556.45x = 2,334.69 × 619.62
  4. Step 4: Simplify right side
    1,556.45x = 1,446,620.62
  5. Step 5: Solve for x
    x = 1,446,620.62/1,556.45
  6. Step 6: Final answer
    x = 929.44

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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.