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Finding the Fourth Proportional to 1,468.23, 2,026.16 and 878.77

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Solution

The fourth proportional to 1,468.23, 2,026.16 and 878.77 is: 1,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,468.23 : 2,026.16 = 878.77 : x
  2. Step 2: Convert to fraction form
    1,468.23/2,026.16 = 878.77/x
  3. Step 3: Cross multiply
    1,468.23x = 2,026.16 × 878.77
  4. Step 4: Simplify right side
    1,468.23x = 1,780,523.60
  5. Step 5: Solve for x
    x = 1,780,523.60/1,468.23
  6. Step 6: Final answer
    x = 1,212.70

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1.5x scale

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.