Home / 5,439.64-7,506.40-3,081.63

Finding the Fourth Proportional to 5,439.64, 7,506.40 and 3,081.63

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Solution

The fourth proportional to 5,439.64, 7,506.40 and 3,081.63 is: 4,252.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.64 : 7,506.40 = 3,081.63 : x
  2. Step 2: Convert to fraction form
    5,439.64/7,506.40 = 3,081.63/x
  3. Step 3: Cross multiply
    5,439.64x = 7,506.40 × 3,081.63
  4. Step 4: Simplify right side
    5,439.64x = 23,131,947.43
  5. Step 5: Solve for x
    x = 23,131,947.43/5,439.64
  6. Step 6: Final answer
    x = 4,252.48

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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.