Home / 1,037.28-1,556.34-459.75

Finding the Fourth Proportional to 1,037.28, 1,556.34 and 459.75

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Solution

The fourth proportional to 1,037.28, 1,556.34 and 459.75 is: 689.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.28 : 1,556.34 = 459.75 : x
  2. Step 2: Convert to fraction form
    1,037.28/1,556.34 = 459.75/x
  3. Step 3: Cross multiply
    1,037.28x = 1,556.34 × 459.75
  4. Step 4: Simplify right side
    1,037.28x = 715,527.32
  5. Step 5: Solve for x
    x = 715,527.32/1,037.28
  6. Step 6: Final answer
    x = 689.81

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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.