Home / 1,256.16-1,875.97-1,072.09

Finding the Fourth Proportional to 1,256.16, 1,875.97 and 1,072.09

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Solution

The fourth proportional to 1,256.16, 1,875.97 and 1,072.09 is: 1,601.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256.16 : 1,875.97 = 1,072.09 : x
  2. Step 2: Convert to fraction form
    1,256.16/1,875.97 = 1,072.09/x
  3. Step 3: Cross multiply
    1,256.16x = 1,875.97 × 1,072.09
  4. Step 4: Simplify right side
    1,256.16x = 2,011,208.68
  5. Step 5: Solve for x
    x = 2,011,208.68/1,256.16
  6. Step 6: Final answer
    x = 1,601.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.