Home / 1,434.34-2,151.54-556.90

Finding the Fourth Proportional to 1,434.34, 2,151.54 and 556.90

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Solution

The fourth proportional to 1,434.34, 2,151.54 and 556.90 is: 835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.34 : 2,151.54 = 556.90 : x
  2. Step 2: Convert to fraction form
    1,434.34/2,151.54 = 556.90/x
  3. Step 3: Cross multiply
    1,434.34x = 2,151.54 × 556.90
  4. Step 4: Simplify right side
    1,434.34x = 1,198,192.63
  5. Step 5: Solve for x
    x = 1,198,192.63/1,434.34
  6. Step 6: Final answer
    x = 835.36

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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.