Home / 3,434.54-5,151.80-1,242.75

Finding the Fourth Proportional to 3,434.54, 5,151.80 and 1,242.75

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Solution

The fourth proportional to 3,434.54, 5,151.80 and 1,242.75 is: 1,864.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,434.54 : 5,151.80 = 1,242.75 : x
  2. Step 2: Convert to fraction form
    3,434.54/5,151.80 = 1,242.75/x
  3. Step 3: Cross multiply
    3,434.54x = 5,151.80 × 1,242.75
  4. Step 4: Simplify right side
    3,434.54x = 6,402,421.88
  5. Step 5: Solve for x
    x = 6,402,421.88/3,434.54
  6. Step 6: Final answer
    x = 1,864.13

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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.