Home / 1,256.13-1,882.94-434.25

Finding the Fourth Proportional to 1,256.13, 1,882.94 and 434.25

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Solution

The fourth proportional to 1,256.13, 1,882.94 and 434.25 is: 650.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256.13 : 1,882.94 = 434.25 : x
  2. Step 2: Convert to fraction form
    1,256.13/1,882.94 = 434.25/x
  3. Step 3: Cross multiply
    1,256.13x = 1,882.94 × 434.25
  4. Step 4: Simplify right side
    1,256.13x = 817,664.52
  5. Step 5: Solve for x
    x = 817,664.52/1,256.13
  6. Step 6: Final answer
    x = 650.94

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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.