Home / 1,556.38-2,334.31-631.70

Finding the Fourth Proportional to 1,556.38, 2,334.31 and 631.70

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Solution

The fourth proportional to 1,556.38, 2,334.31 and 631.70 is: 947.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.38 : 2,334.31 = 631.70 : x
  2. Step 2: Convert to fraction form
    1,556.38/2,334.31 = 631.70/x
  3. Step 3: Cross multiply
    1,556.38x = 2,334.31 × 631.70
  4. Step 4: Simplify right side
    1,556.38x = 1,474,583.63
  5. Step 5: Solve for x
    x = 1,474,583.63/1,556.38
  6. Step 6: Final answer
    x = 947.44

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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.