Home / 1,037.64-1,556.46-257.64

Finding the Fourth Proportional to 1,037.64, 1,556.46 and 257.64

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Solution

The fourth proportional to 1,037.64, 1,556.46 and 257.64 is: 386.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.64 : 1,556.46 = 257.64 : x
  2. Step 2: Convert to fraction form
    1,037.64/1,556.46 = 257.64/x
  3. Step 3: Cross multiply
    1,037.64x = 1,556.46 × 257.64
  4. Step 4: Simplify right side
    1,037.64x = 401,006.35
  5. Step 5: Solve for x
    x = 401,006.35/1,037.64
  6. Step 6: Final answer
    x = 386.46

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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.