Home / 1,475.09-2,211.10-550.25

Finding the Fourth Proportional to 1,475.09, 2,211.10 and 550.25

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Solution

The fourth proportional to 1,475.09, 2,211.10 and 550.25 is: 824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.09 : 2,211.10 = 550.25 : x
  2. Step 2: Convert to fraction form
    1,475.09/2,211.10 = 550.25/x
  3. Step 3: Cross multiply
    1,475.09x = 2,211.10 × 550.25
  4. Step 4: Simplify right side
    1,475.09x = 1,216,657.78
  5. Step 5: Solve for x
    x = 1,216,657.78/1,475.09
  6. Step 6: Final answer
    x = 824.80

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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.