Home / 2,638.35-3,640.68-1,459.53

Finding the Fourth Proportional to 2,638.35, 3,640.68 and 1,459.53

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Solution

The fourth proportional to 2,638.35, 3,640.68 and 1,459.53 is: 2,014.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.35 : 3,640.68 = 1,459.53 : x
  2. Step 2: Convert to fraction form
    2,638.35/3,640.68 = 1,459.53/x
  3. Step 3: Cross multiply
    2,638.35x = 3,640.68 × 1,459.53
  4. Step 4: Simplify right side
    2,638.35x = 5,313,681.68
  5. Step 5: Solve for x
    x = 5,313,681.68/2,638.35
  6. Step 6: Final answer
    x = 2,014.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.