Home / 2,731.40-4,091-2,113.10

Finding the Fourth Proportional to 2,731.40, 4,091 and 2,113.10

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Solution

The fourth proportional to 2,731.40, 4,091 and 2,113.10 is: 3,164.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.40 : 4,091 = 2,113.10 : x
  2. Step 2: Convert to fraction form
    2,731.40/4,091 = 2,113.10/x
  3. Step 3: Cross multiply
    2,731.40x = 4,091 × 2,113.10
  4. Step 4: Simplify right side
    2,731.40x = 8,644,692.10
  5. Step 5: Solve for x
    x = 8,644,692.10/2,731.40
  6. Step 6: Final answer
    x = 3,164.93

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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.