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Finding the Fourth Proportional to 2,415.51, 3,333.15 and 1,367.51

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Solution

The fourth proportional to 2,415.51, 3,333.15 and 1,367.51 is: 1,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.51 : 3,333.15 = 1,367.51 : x
  2. Step 2: Convert to fraction form
    2,415.51/3,333.15 = 1,367.51/x
  3. Step 3: Cross multiply
    2,415.51x = 3,333.15 × 1,367.51
  4. Step 4: Simplify right side
    2,415.51x = 4,558,115.96
  5. Step 5: Solve for x
    x = 4,558,115.96/2,415.51
  6. Step 6: Final answer
    x = 1,887.02

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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.