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Finding the Fourth Proportional to 1,468.07, 2,025.51 and 878.49

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Solution

The fourth proportional to 1,468.07, 2,025.51 and 878.49 is: 1,212.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.07 : 2,025.51 = 878.49 : x
  2. Step 2: Convert to fraction form
    1,468.07/2,025.51 = 878.49/x
  3. Step 3: Cross multiply
    1,468.07x = 2,025.51 × 878.49
  4. Step 4: Simplify right side
    1,468.07x = 1,779,390.28
  5. Step 5: Solve for x
    x = 1,779,390.28/1,468.07
  6. Step 6: Final answer
    x = 1,212.07

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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.