Home / 1,415.44-2,117.40-1,185.04

Finding the Fourth Proportional to 1,415.44, 2,117.40 and 1,185.04

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Solution

The fourth proportional to 1,415.44, 2,117.40 and 1,185.04 is: 1,772.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.44 : 2,117.40 = 1,185.04 : x
  2. Step 2: Convert to fraction form
    1,415.44/2,117.40 = 1,185.04/x
  3. Step 3: Cross multiply
    1,415.44x = 2,117.40 × 1,185.04
  4. Step 4: Simplify right side
    1,415.44x = 2,509,203.70
  5. Step 5: Solve for x
    x = 2,509,203.70/1,415.44
  6. Step 6: Final answer
    x = 1,772.74

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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.