Home / 1,556.75-2,334.18-631.55

Finding the Fourth Proportional to 1,556.75, 2,334.18 and 631.55

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Solution

The fourth proportional to 1,556.75, 2,334.18 and 631.55 is: 946.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.75 : 2,334.18 = 631.55 : x
  2. Step 2: Convert to fraction form
    1,556.75/2,334.18 = 631.55/x
  3. Step 3: Cross multiply
    1,556.75x = 2,334.18 × 631.55
  4. Step 4: Simplify right side
    1,556.75x = 1,474,151.38
  5. Step 5: Solve for x
    x = 1,474,151.38/1,556.75
  6. Step 6: Final answer
    x = 946.94

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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.