Home / 1,433.09-2,148.50-555.56

Finding the Fourth Proportional to 1,433.09, 2,148.50 and 555.56

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Solution

The fourth proportional to 1,433.09, 2,148.50 and 555.56 is: 832.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.09 : 2,148.50 = 555.56 : x
  2. Step 2: Convert to fraction form
    1,433.09/2,148.50 = 555.56/x
  3. Step 3: Cross multiply
    1,433.09x = 2,148.50 × 555.56
  4. Step 4: Simplify right side
    1,433.09x = 1,193,617.80
  5. Step 5: Solve for x
    x = 1,193,617.80/1,433.09
  6. Step 6: Final answer
    x = 832.90

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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.