Home / 2,913.30-4,020.17-1,918.96

Finding the Fourth Proportional to 2,913.30, 4,020.17 and 1,918.96

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Solution

The fourth proportional to 2,913.30, 4,020.17 and 1,918.96 is: 2,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.30 : 4,020.17 = 1,918.96 : x
  2. Step 2: Convert to fraction form
    2,913.30/4,020.17 = 1,918.96/x
  3. Step 3: Cross multiply
    2,913.30x = 4,020.17 × 1,918.96
  4. Step 4: Simplify right side
    2,913.30x = 7,714,525.78
  5. Step 5: Solve for x
    x = 7,714,525.78/2,913.30
  6. Step 6: Final answer
    x = 2,648.04

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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.