Home / 1,056.14-1,584.14-439.62

Finding the Fourth Proportional to 1,056.14, 1,584.14 and 439.62

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Solution

The fourth proportional to 1,056.14, 1,584.14 and 439.62 is: 659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.14 : 1,584.14 = 439.62 : x
  2. Step 2: Convert to fraction form
    1,056.14/1,584.14 = 439.62/x
  3. Step 3: Cross multiply
    1,056.14x = 1,584.14 × 439.62
  4. Step 4: Simplify right side
    1,056.14x = 696,419.63
  5. Step 5: Solve for x
    x = 696,419.63/1,056.14
  6. Step 6: Final answer
    x = 659.40

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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.