Home / 3,215.12-4,820.88-1,266.08

Finding the Fourth Proportional to 3,215.12, 4,820.88 and 1,266.08

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Solution

The fourth proportional to 3,215.12, 4,820.88 and 1,266.08 is: 1,898.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.12 : 4,820.88 = 1,266.08 : x
  2. Step 2: Convert to fraction form
    3,215.12/4,820.88 = 1,266.08/x
  3. Step 3: Cross multiply
    3,215.12x = 4,820.88 × 1,266.08
  4. Step 4: Simplify right side
    3,215.12x = 6,103,619.75
  5. Step 5: Solve for x
    x = 6,103,619.75/3,215.12
  6. Step 6: Final answer
    x = 1,898.41

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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.