Home / 3,683.12-5,085.15-2,830.86

Finding the Fourth Proportional to 3,683.12, 5,085.15 and 2,830.86

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Solution

The fourth proportional to 3,683.12, 5,085.15 and 2,830.86 is: 3,908.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,683.12 : 5,085.15 = 2,830.86 : x
  2. Step 2: Convert to fraction form
    3,683.12/5,085.15 = 2,830.86/x
  3. Step 3: Cross multiply
    3,683.12x = 5,085.15 × 2,830.86
  4. Step 4: Simplify right side
    3,683.12x = 14,395,347.73
  5. Step 5: Solve for x
    x = 14,395,347.73/3,683.12
  6. Step 6: Final answer
    x = 3,908.46

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1.5x scale

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.