Home / 3,112.53-4,666.47-1,879.66

Finding the Fourth Proportional to 3,112.53, 4,666.47 and 1,879.66

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Solution

The fourth proportional to 3,112.53, 4,666.47 and 1,879.66 is: 2,818.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.53 : 4,666.47 = 1,879.66 : x
  2. Step 2: Convert to fraction form
    3,112.53/4,666.47 = 1,879.66/x
  3. Step 3: Cross multiply
    3,112.53x = 4,666.47 × 1,879.66
  4. Step 4: Simplify right side
    3,112.53x = 8,771,377.00
  5. Step 5: Solve for x
    x = 8,771,377.00/3,112.53
  6. Step 6: Final answer
    x = 2,818.09

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1.5x scale

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.