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Finding the Fourth Proportional to 895.83, 1,345.11 and 879.43

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Solution

The fourth proportional to 895.83, 1,345.11 and 879.43 is: 1,320.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.83 : 1,345.11 = 879.43 : x
  2. Step 2: Convert to fraction form
    895.83/1,345.11 = 879.43/x
  3. Step 3: Cross multiply
    895.83x = 1,345.11 × 879.43
  4. Step 4: Simplify right side
    895.83x = 1,182,930.09
  5. Step 5: Solve for x
    x = 1,182,930.09/895.83
  6. Step 6: Final answer
    x = 1,320.49

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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.