Home / 3,315.85-4,973.93-1,853.89

Finding the Fourth Proportional to 3,315.85, 4,973.93 and 1,853.89

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Solution

The fourth proportional to 3,315.85, 4,973.93 and 1,853.89 is: 2,780.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.85 : 4,973.93 = 1,853.89 : x
  2. Step 2: Convert to fraction form
    3,315.85/4,973.93 = 1,853.89/x
  3. Step 3: Cross multiply
    3,315.85x = 4,973.93 × 1,853.89
  4. Step 4: Simplify right side
    3,315.85x = 9,221,119.09
  5. Step 5: Solve for x
    x = 9,221,119.09/3,315.85
  6. Step 6: Final answer
    x = 2,780.92

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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.