Home / 2,929.58-4,042.89-1,603.42

Finding the Fourth Proportional to 2,929.58, 4,042.89 and 1,603.42

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Solution

The fourth proportional to 2,929.58, 4,042.89 and 1,603.42 is: 2,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.58 : 4,042.89 = 1,603.42 : x
  2. Step 2: Convert to fraction form
    2,929.58/4,042.89 = 1,603.42/x
  3. Step 3: Cross multiply
    2,929.58x = 4,042.89 × 1,603.42
  4. Step 4: Simplify right side
    2,929.58x = 6,482,430.47
  5. Step 5: Solve for x
    x = 6,482,430.47/2,929.58
  6. Step 6: Final answer
    x = 2,212.75

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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.