Home / 3,315.10-4,972.80-1,853.14

Finding the Fourth Proportional to 3,315.10, 4,972.80 and 1,853.14

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Solution

The fourth proportional to 3,315.10, 4,972.80 and 1,853.14 is: 2,779.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.10 : 4,972.80 = 1,853.14 : x
  2. Step 2: Convert to fraction form
    3,315.10/4,972.80 = 1,853.14/x
  3. Step 3: Cross multiply
    3,315.10x = 4,972.80 × 1,853.14
  4. Step 4: Simplify right side
    3,315.10x = 9,215,294.59
  5. Step 5: Solve for x
    x = 9,215,294.59/3,315.10
  6. Step 6: Final answer
    x = 2,779.79

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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.