Home / 2,317.10-3,478.08-1,221.17

Finding the Fourth Proportional to 2,317.10, 3,478.08 and 1,221.17

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Solution

The fourth proportional to 2,317.10, 3,478.08 and 1,221.17 is: 1,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.10 : 3,478.08 = 1,221.17 : x
  2. Step 2: Convert to fraction form
    2,317.10/3,478.08 = 1,221.17/x
  3. Step 3: Cross multiply
    2,317.10x = 3,478.08 × 1,221.17
  4. Step 4: Simplify right side
    2,317.10x = 4,247,326.95
  5. Step 5: Solve for x
    x = 4,247,326.95/2,317.10
  6. Step 6: Final answer
    x = 1,833.04

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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.