Home / 2,638.10-3,640.61-1,459.14

Finding the Fourth Proportional to 2,638.10, 3,640.61 and 1,459.14

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Solution

The fourth proportional to 2,638.10, 3,640.61 and 1,459.14 is: 2,013.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.10 : 3,640.61 = 1,459.14 : x
  2. Step 2: Convert to fraction form
    2,638.10/3,640.61 = 1,459.14/x
  3. Step 3: Cross multiply
    2,638.10x = 3,640.61 × 1,459.14
  4. Step 4: Simplify right side
    2,638.10x = 5,312,159.68
  5. Step 5: Solve for x
    x = 5,312,159.68/2,638.10
  6. Step 6: Final answer
    x = 2,013.63

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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.