Home / 2,000.43-2,761.09-1,215.14

Finding the Fourth Proportional to 2,000.43, 2,761.09 and 1,215.14

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Solution

The fourth proportional to 2,000.43, 2,761.09 and 1,215.14 is: 1,677.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,000.43 : 2,761.09 = 1,215.14 : x
  2. Step 2: Convert to fraction form
    2,000.43/2,761.09 = 1,215.14/x
  3. Step 3: Cross multiply
    2,000.43x = 2,761.09 × 1,215.14
  4. Step 4: Simplify right side
    2,000.43x = 3,355,094.06
  5. Step 5: Solve for x
    x = 3,355,094.06/2,000.43
  6. Step 6: Final answer
    x = 1,677.19

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1.5x scale

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.