Home / 3,291.30-4,931.48-2,315.35

Finding the Fourth Proportional to 3,291.30, 4,931.48 and 2,315.35

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Solution

The fourth proportional to 3,291.30, 4,931.48 and 2,315.35 is: 3,469.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.30 : 4,931.48 = 2,315.35 : x
  2. Step 2: Convert to fraction form
    3,291.30/4,931.48 = 2,315.35/x
  3. Step 3: Cross multiply
    3,291.30x = 4,931.48 × 2,315.35
  4. Step 4: Simplify right side
    3,291.30x = 11,418,114.17
  5. Step 5: Solve for x
    x = 11,418,114.17/3,291.30
  6. Step 6: Final answer
    x = 3,469.18

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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.