Home / 2,010.10-3,013.80-913.90

Finding the Fourth Proportional to 2,010.10, 3,013.80 and 913.90

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Solution

The fourth proportional to 2,010.10, 3,013.80 and 913.90 is: 1,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,010.10 : 3,013.80 = 913.90 : x
  2. Step 2: Convert to fraction form
    2,010.10/3,013.80 = 913.90/x
  3. Step 3: Cross multiply
    2,010.10x = 3,013.80 × 913.90
  4. Step 4: Simplify right side
    2,010.10x = 2,754,311.82
  5. Step 5: Solve for x
    x = 2,754,311.82/2,010.10
  6. Step 6: Final answer
    x = 1,370.24

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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.