Home / 4,085.66-5,639.21-2,318.31

Finding the Fourth Proportional to 4,085.66, 5,639.21 and 2,318.31

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Solution

The fourth proportional to 4,085.66, 5,639.21 and 2,318.31 is: 3,199.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.66 : 5,639.21 = 2,318.31 : x
  2. Step 2: Convert to fraction form
    4,085.66/5,639.21 = 2,318.31/x
  3. Step 3: Cross multiply
    4,085.66x = 5,639.21 × 2,318.31
  4. Step 4: Simplify right side
    4,085.66x = 13,073,425.34
  5. Step 5: Solve for x
    x = 13,073,425.34/4,085.66
  6. Step 6: Final answer
    x = 3,199.84

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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.