Home / 5,138.66-7,710.34-2,504.72

Finding the Fourth Proportional to 5,138.66, 7,710.34 and 2,504.72

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Solution

The fourth proportional to 5,138.66, 7,710.34 and 2,504.72 is: 3,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.66 : 7,710.34 = 2,504.72 : x
  2. Step 2: Convert to fraction form
    5,138.66/7,710.34 = 2,504.72/x
  3. Step 3: Cross multiply
    5,138.66x = 7,710.34 × 2,504.72
  4. Step 4: Simplify right side
    5,138.66x = 19,312,242.80
  5. Step 5: Solve for x
    x = 19,312,242.80/5,138.66
  6. Step 6: Final answer
    x = 3,758.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.