Home / 1,503.24-2,255.13-722.58

Finding the Fourth Proportional to 1,503.24, 2,255.13 and 722.58

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Solution

The fourth proportional to 1,503.24, 2,255.13 and 722.58 is: 1,084.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503.24 : 2,255.13 = 722.58 : x
  2. Step 2: Convert to fraction form
    1,503.24/2,255.13 = 722.58/x
  3. Step 3: Cross multiply
    1,503.24x = 2,255.13 × 722.58
  4. Step 4: Simplify right side
    1,503.24x = 1,629,511.84
  5. Step 5: Solve for x
    x = 1,629,511.84/1,503.24
  6. Step 6: Final answer
    x = 1,084.00

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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.