Home / 1,124.21-1,551.36-626.85

Finding the Fourth Proportional to 1,124.21, 1,551.36 and 626.85

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Solution

The fourth proportional to 1,124.21, 1,551.36 and 626.85 is: 865.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.21 : 1,551.36 = 626.85 : x
  2. Step 2: Convert to fraction form
    1,124.21/1,551.36 = 626.85/x
  3. Step 3: Cross multiply
    1,124.21x = 1,551.36 × 626.85
  4. Step 4: Simplify right side
    1,124.21x = 972,470.02
  5. Step 5: Solve for x
    x = 972,470.02/1,124.21
  6. Step 6: Final answer
    x = 865.03

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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.