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Finding the Fourth Proportional to 1,465.52, 2,021.28 and 875.94

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Solution

The fourth proportional to 1,465.52, 2,021.28 and 875.94 is: 1,208.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.52 : 2,021.28 = 875.94 : x
  2. Step 2: Convert to fraction form
    1,465.52/2,021.28 = 875.94/x
  3. Step 3: Cross multiply
    1,465.52x = 2,021.28 × 875.94
  4. Step 4: Simplify right side
    1,465.52x = 1,770,520.00
  5. Step 5: Solve for x
    x = 1,770,520.00/1,465.52
  6. Step 6: Final answer
    x = 1,208.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.