Home / 1,417.20-2,124.93-550.50

Finding the Fourth Proportional to 1,417.20, 2,124.93 and 550.50

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Solution

The fourth proportional to 1,417.20, 2,124.93 and 550.50 is: 825.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.20 : 2,124.93 = 550.50 : x
  2. Step 2: Convert to fraction form
    1,417.20/2,124.93 = 550.50/x
  3. Step 3: Cross multiply
    1,417.20x = 2,124.93 × 550.50
  4. Step 4: Simplify right side
    1,417.20x = 1,169,773.97
  5. Step 5: Solve for x
    x = 1,169,773.97/1,417.20
  6. Step 6: Final answer
    x = 825.41

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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.