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Finding the Fourth Proportional to 1,435.16, 2,152.58 and 395.24

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Solution

The fourth proportional to 1,435.16, 2,152.58 and 395.24 is: 592.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.16 : 2,152.58 = 395.24 : x
  2. Step 2: Convert to fraction form
    1,435.16/2,152.58 = 395.24/x
  3. Step 3: Cross multiply
    1,435.16x = 2,152.58 × 395.24
  4. Step 4: Simplify right side
    1,435.16x = 850,785.72
  5. Step 5: Solve for x
    x = 850,785.72/1,435.16
  6. Step 6: Final answer
    x = 592.82

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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.