Home / 1,056.85-1,584.18-440.91

Finding the Fourth Proportional to 1,056.85, 1,584.18 and 440.91

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Solution

The fourth proportional to 1,056.85, 1,584.18 and 440.91 is: 660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.85 : 1,584.18 = 440.91 : x
  2. Step 2: Convert to fraction form
    1,056.85/1,584.18 = 440.91/x
  3. Step 3: Cross multiply
    1,056.85x = 1,584.18 × 440.91
  4. Step 4: Simplify right side
    1,056.85x = 698,480.80
  5. Step 5: Solve for x
    x = 698,480.80/1,056.85
  6. Step 6: Final answer
    x = 660.91

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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.