Home / 2,415.15-3,331.73-1,530.33

Finding the Fourth Proportional to 2,415.15, 3,331.73 and 1,530.33

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Solution

The fourth proportional to 2,415.15, 3,331.73 and 1,530.33 is: 2,111.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.15 : 3,331.73 = 1,530.33 : x
  2. Step 2: Convert to fraction form
    2,415.15/3,331.73 = 1,530.33/x
  3. Step 3: Cross multiply
    2,415.15x = 3,331.73 × 1,530.33
  4. Step 4: Simplify right side
    2,415.15x = 5,098,637.70
  5. Step 5: Solve for x
    x = 5,098,637.70/2,415.15
  6. Step 6: Final answer
    x = 2,111.11

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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.