Home / 2,580.90-3,562.55-1,911.13

Finding the Fourth Proportional to 2,580.90, 3,562.55 and 1,911.13

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Solution

The fourth proportional to 2,580.90, 3,562.55 and 1,911.13 is: 2,638.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.90 : 3,562.55 = 1,911.13 : x
  2. Step 2: Convert to fraction form
    2,580.90/3,562.55 = 1,911.13/x
  3. Step 3: Cross multiply
    2,580.90x = 3,562.55 × 1,911.13
  4. Step 4: Simplify right side
    2,580.90x = 6,808,496.18
  5. Step 5: Solve for x
    x = 6,808,496.18/2,580.90
  6. Step 6: Final answer
    x = 2,638.03

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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.