Home / 3,061.12-4,590.65-1,212.87

Finding the Fourth Proportional to 3,061.12, 4,590.65 and 1,212.87

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Solution

The fourth proportional to 3,061.12, 4,590.65 and 1,212.87 is: 1,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.12 : 4,590.65 = 1,212.87 : x
  2. Step 2: Convert to fraction form
    3,061.12/4,590.65 = 1,212.87/x
  3. Step 3: Cross multiply
    3,061.12x = 4,590.65 × 1,212.87
  4. Step 4: Simplify right side
    3,061.12x = 5,567,878.50
  5. Step 5: Solve for x
    x = 5,567,878.50/3,061.12
  6. Step 6: Final answer
    x = 1,818.90

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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.