Home / 1,935.15-2,667.99-1,580.72

Finding the Fourth Proportional to 1,935.15, 2,667.99 and 1,580.72

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Solution

The fourth proportional to 1,935.15, 2,667.99 and 1,580.72 is: 2,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.15 : 2,667.99 = 1,580.72 : x
  2. Step 2: Convert to fraction form
    1,935.15/2,667.99 = 1,580.72/x
  3. Step 3: Cross multiply
    1,935.15x = 2,667.99 × 1,580.72
  4. Step 4: Simplify right side
    1,935.15x = 4,217,331.81
  5. Step 5: Solve for x
    x = 4,217,331.81/1,935.15
  6. Step 6: Final answer
    x = 2,179.33

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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.