Home / 2,891.23-4,329.85-1,654.89

Finding the Fourth Proportional to 2,891.23, 4,329.85 and 1,654.89

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Solution

The fourth proportional to 2,891.23, 4,329.85 and 1,654.89 is: 2,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.23 : 4,329.85 = 1,654.89 : x
  2. Step 2: Convert to fraction form
    2,891.23/4,329.85 = 1,654.89/x
  3. Step 3: Cross multiply
    2,891.23x = 4,329.85 × 1,654.89
  4. Step 4: Simplify right side
    2,891.23x = 7,165,417.19
  5. Step 5: Solve for x
    x = 7,165,417.19/2,891.23
  6. Step 6: Final answer
    x = 2,478.33

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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.