Home / 2,215.13-3,316.82-1,774.31

Finding the Fourth Proportional to 2,215.13, 3,316.82 and 1,774.31

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Solution

The fourth proportional to 2,215.13, 3,316.82 and 1,774.31 is: 2,656.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.13 : 3,316.82 = 1,774.31 : x
  2. Step 2: Convert to fraction form
    2,215.13/3,316.82 = 1,774.31/x
  3. Step 3: Cross multiply
    2,215.13x = 3,316.82 × 1,774.31
  4. Step 4: Simplify right side
    2,215.13x = 5,885,041.44
  5. Step 5: Solve for x
    x = 5,885,041.44/2,215.13
  6. Step 6: Final answer
    x = 2,656.75

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1.5x scale

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.