Home / 1,215.14-1,813.23-1,084.24

Finding the Fourth Proportional to 1,215.14, 1,813.23 and 1,084.24

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Solution

The fourth proportional to 1,215.14, 1,813.23 and 1,084.24 is: 1,617.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.14 : 1,813.23 = 1,084.24 : x
  2. Step 2: Convert to fraction form
    1,215.14/1,813.23 = 1,084.24/x
  3. Step 3: Cross multiply
    1,215.14x = 1,813.23 × 1,084.24
  4. Step 4: Simplify right side
    1,215.14x = 1,965,973.16
  5. Step 5: Solve for x
    x = 1,965,973.16/1,215.14
  6. Step 6: Final answer
    x = 1,617.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.