Home / 5,439.59-7,506.81-3,081.68

Finding the Fourth Proportional to 5,439.59, 7,506.81 and 3,081.68

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Solution

The fourth proportional to 5,439.59, 7,506.81 and 3,081.68 is: 4,252.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.59 : 7,506.81 = 3,081.68 : x
  2. Step 2: Convert to fraction form
    5,439.59/7,506.81 = 3,081.68/x
  3. Step 3: Cross multiply
    5,439.59x = 7,506.81 × 3,081.68
  4. Step 4: Simplify right side
    5,439.59x = 23,133,586.24
  5. Step 5: Solve for x
    x = 23,133,586.24/5,439.59
  6. Step 6: Final answer
    x = 4,252.82

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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.