Home / 5,081.81-7,012.40-2,957.62

Finding the Fourth Proportional to 5,081.81, 7,012.40 and 2,957.62

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Solution

The fourth proportional to 5,081.81, 7,012.40 and 2,957.62 is: 4,081.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.81 : 7,012.40 = 2,957.62 : x
  2. Step 2: Convert to fraction form
    5,081.81/7,012.40 = 2,957.62/x
  3. Step 3: Cross multiply
    5,081.81x = 7,012.40 × 2,957.62
  4. Step 4: Simplify right side
    5,081.81x = 20,740,007.41
  5. Step 5: Solve for x
    x = 20,740,007.41/5,081.81
  6. Step 6: Final answer
    x = 4,081.23

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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.