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Finding the Fourth Proportional to 2,453.42, 3,679.95 and 722.18

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Solution

The fourth proportional to 2,453.42, 3,679.95 and 722.18 is: 1,083.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.42 : 3,679.95 = 722.18 : x
  2. Step 2: Convert to fraction form
    2,453.42/3,679.95 = 722.18/x
  3. Step 3: Cross multiply
    2,453.42x = 3,679.95 × 722.18
  4. Step 4: Simplify right side
    2,453.42x = 2,657,586.29
  5. Step 5: Solve for x
    x = 2,657,586.29/2,453.42
  6. Step 6: Final answer
    x = 1,083.22

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1.5x scale

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.