Home / 1,415.26-1,951.52-1,191.14

Finding the Fourth Proportional to 1,415.26, 1,951.52 and 1,191.14

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Solution

The fourth proportional to 1,415.26, 1,951.52 and 1,191.14 is: 1,642.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.26 : 1,951.52 = 1,191.14 : x
  2. Step 2: Convert to fraction form
    1,415.26/1,951.52 = 1,191.14/x
  3. Step 3: Cross multiply
    1,415.26x = 1,951.52 × 1,191.14
  4. Step 4: Simplify right side
    1,415.26x = 2,324,533.53
  5. Step 5: Solve for x
    x = 2,324,533.53/1,415.26
  6. Step 6: Final answer
    x = 1,642.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.