Home / 1,556.58-2,147.14-926.69

Finding the Fourth Proportional to 1,556.58, 2,147.14 and 926.69

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Solution

The fourth proportional to 1,556.58, 2,147.14 and 926.69 is: 1,278.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.58 : 2,147.14 = 926.69 : x
  2. Step 2: Convert to fraction form
    1,556.58/2,147.14 = 926.69/x
  3. Step 3: Cross multiply
    1,556.58x = 2,147.14 × 926.69
  4. Step 4: Simplify right side
    1,556.58x = 1,989,735.67
  5. Step 5: Solve for x
    x = 1,989,735.67/1,556.58
  6. Step 6: Final answer
    x = 1,278.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.