Home / 2,013.60-3,020.40-1,191.45

Finding the Fourth Proportional to 2,013.60, 3,020.40 and 1,191.45

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Solution

The fourth proportional to 2,013.60, 3,020.40 and 1,191.45 is: 1,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.60 : 3,020.40 = 1,191.45 : x
  2. Step 2: Convert to fraction form
    2,013.60/3,020.40 = 1,191.45/x
  3. Step 3: Cross multiply
    2,013.60x = 3,020.40 × 1,191.45
  4. Step 4: Simplify right side
    2,013.60x = 3,598,655.58
  5. Step 5: Solve for x
    x = 3,598,655.58/2,013.60
  6. Step 6: Final answer
    x = 1,787.18

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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.