Home / 1,434.69-2,152.17-394.75

Finding the Fourth Proportional to 1,434.69, 2,152.17 and 394.75

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Solution

The fourth proportional to 1,434.69, 2,152.17 and 394.75 is: 592.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.69 : 2,152.17 = 394.75 : x
  2. Step 2: Convert to fraction form
    1,434.69/2,152.17 = 394.75/x
  3. Step 3: Cross multiply
    1,434.69x = 2,152.17 × 394.75
  4. Step 4: Simplify right side
    1,434.69x = 849,571.80
  5. Step 5: Solve for x
    x = 849,571.80/1,434.69
  6. Step 6: Final answer
    x = 592.16

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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.