Home / 2,256.78-3,384.66-1,145.07

Finding the Fourth Proportional to 2,256.78, 3,384.66 and 1,145.07

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Solution

The fourth proportional to 2,256.78, 3,384.66 and 1,145.07 is: 1,717.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.78 : 3,384.66 = 1,145.07 : x
  2. Step 2: Convert to fraction form
    2,256.78/3,384.66 = 1,145.07/x
  3. Step 3: Cross multiply
    2,256.78x = 3,384.66 × 1,145.07
  4. Step 4: Simplify right side
    2,256.78x = 3,875,672.63
  5. Step 5: Solve for x
    x = 3,875,672.63/2,256.78
  6. Step 6: Final answer
    x = 1,717.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.