Home / 3,012.81-4,514.35-1,856.13

Finding the Fourth Proportional to 3,012.81, 4,514.35 and 1,856.13

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Solution

The fourth proportional to 3,012.81, 4,514.35 and 1,856.13 is: 2,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.81 : 4,514.35 = 1,856.13 : x
  2. Step 2: Convert to fraction form
    3,012.81/4,514.35 = 1,856.13/x
  3. Step 3: Cross multiply
    3,012.81x = 4,514.35 × 1,856.13
  4. Step 4: Simplify right side
    3,012.81x = 8,379,220.47
  5. Step 5: Solve for x
    x = 8,379,220.47/3,012.81
  6. Step 6: Final answer
    x = 2,781.20

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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.